Preview only show first 10 pages with watermark. For full document please download

As 1594 - Hot Rolled Flat Steels




AS/NZS 1594:1997 Australian/Ne Australian/New w Zealand Standard Standard® Hot-rolled Hot-rolled steel flat flat products AS/NZS 1594:1997 This This Joint Joint Austra Australian lian/Ne /New w Zealan Zealand d Standa Standard rd was was prepa prepared red by Joint Joint Tech Technic nical al Comm Committ ittee ee MT/1, MT/1, Iron and and Steel. Steel. It was approv approved ed on beha behalf lf of the Council Council of  Standard Standardss Australia Australia on 1 August August 1997 and on behalf behalf of the Council Council of Standard Standardss New Zealand on 4 August 1997. 1997. It was published published on 5 November November 1997. 1997. The following interests are represented on Committee MT/1: Australasian Railway Association Australian Chamber of Commerce and Industry Australian Chamber of Manufactures Australian Foundry Institute Australian Institute of Steel Construction Bureau Bureau of Steel Manufact Manufacturers urers of Australia Institute of Metals and Materials Australasia Metal Trades Industry Association of Australia Society of of Automotive Engineers Engineers — Australasia Australasia keep abre abreas astt of prog progre ress ss in indu indust stry ry,, Join Jointt Aust Austra rali lian an/  /  Review Review of Stand Standard ards. s. To keep New Zealand Standards are are subject to periodic review and are kept up to date by the issue of amendments amendments or new editions editions as necessary.It necessary.It is important important therefore therefore that Standards Standards users ensure ensure that they are in possession possession of the latest edition, and any amendments amendments thereto. Full details of all Joint Standards and related publications will be found in the Standards Austra Australia lia and Standa Standards rds New Zealan Zealand d Catalo Catalogue gue of Public Publicati ations ons;; this this inform informati ation on is supplement supplemented ed each month by the magazines magazines ‘The Australian Australian Standard’ and ‘Standards ‘Standards New Zealan Zealand’, d’, which which subscr subscribi ibing ng member memberss receiv receive, e, and which which give give detail detailss of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvements to Joint Standards, addressed to the head office of either Standa Standards rds Austra Australia lia or Standa Standards rds New Zealan Zealand, d, are welcom welcomed. ed. Notif Notifica icatio tion n of any inaccuracy inaccuracy or ambiguity ambiguity found in a Joint Australia Australian/New n/New Zealand Zealand Standard should should be made without delay in order that the matter may be investigated and appropriate action taken. This Standard was issued in draft form for comment as DR 96424. AS/NZS 1594:1997 Australian/N Australian/New ew Zealand Zealand Standard® Hot-rolled steel flat products Originated Originated in Australi Australiaa in part as AS G2— 1945. Final Australian Australian edition edition AS 1594— 1992. Jointly revised and designated AS/NZS 1594:1997. PUBLISHED JOINTLY JOINTLY BY: STANDARDS STANDARDS AUSTRALIA AUSTRALIA 1 The Crescent, Homebush NSW 2140 Australia STANDARDS STANDARDS NEW ZEALAND Level Level 10, Radio New Zealand House, 155 The Terrace, Terrace, Wellington Wellington 6001 New Zealand ISBN 0 7337 1428 5 AS/NZS 1594:1997 2 PREFACE This This Stand Standard ard was prepa prepared red by the the Join Jointt Stand Standard ardss Austra Australi lia/S a/Sta tand ndard ardss New Zealan Zealand d Committ ommittee ee MT/1, T/1, Iron Iron and and Steel Steel,, at the the requ reques estt of Aust Austra rali lian an indu indust stry ry,, to supers upersede ede AS 1594—1992. This This edit editio ion n inco incorp rpo orates rates recent ecent chan change gess which hich have have occu occurre rred d in the the hothot-rol rolle led d flat flat product productss area of the Australian Australian and New Zealand Zealand steel steel industr industry. y. It include includess Amendment Amendment No. 1 (1992), and permits the use of micro-alloyed steels. The objective of this revision is to update the requirements for hot-rolled steel plate, floor plate, plate, sheet sheet and strip, strip, rolled rolled on a continuo continuous us mill, mill, in thickne thicknesses sses up to 16 mm and widths widths up to 2000 mm. During this r evision evision the following following International International Standards were considered: considered: ISO 3573: 3573:198 1986 6 Hot-rolle Hot-rolled d carbon carbon steel steel sheet of of commercial commercial and drawing drawing qualit qualities ies 4995: 4995:199 1993 3 Hot-rolle Hot-rolled d steel sheet sheet of structur structural al quality quality 4996: 4996:199 1991 1 Hot-rolle Hot-rolled d steel sheet sheet of high high yield yield stress stress structural structural quality quality 5951: 5951:199 1993 3 Hot-rolle Hot-rolled d steel sheet sheet of highe higherr yield yield strength strength with improved improved formability formability 6316: 6316:199 1993 3 Hot-rolle Hot-rolled d steel strip of struct structural ural qualit quality y 6317: 6317:198 1982 2 Hot-rolle Hot-rolled d carbon carbon steel strip strip of commercial commercial and drawing drawing quali qualitie tiess 7452: 7452:198 1984 4 Hot-rolle Hot-rolled d s tructural tructural steel steel plates— plates— Tolerances Tolerances on dimension dimensionss and shape 9034: 9034:198 1987 7 Hot-rolle Hot-rolled d s tructural tructural steel steel wide flats— Tolerance Tolerancess on dimension dimensionss and shape shape 10384 10384:19 :1992 92 Hot-rolle Hot-rolled d carbon carbon steel steel sheet for machinery machinery Austra Australi liaa is a parti partici cipa patin ting g member member of ISO Subcom Subcommit mitte teee ISO/TC 17/SC 17/SC 12 which which is responsib responsible le for the develop development ment of the majority majority of these these S tandards. tandards. Austra Australi lian an/N /New ew Zealan Zealand d indus industry try consid considers ers that that there there are consid considerab erable le advant advantage agess in having the requirements for all types of hot-rolled flat steel products in the one Standard. The The terms terms ‘normat ‘normativ ive’ e’ and ‘informat ‘informativ ive’ e’ have have been been used used in this this Stand Standard ard to defin definee the the appl applica icati tion on of the append appendix ix to which they they appl apply. y. A ‘normat ‘normativ ive’ e’ appen appendi dix x is an integral integral part of a Stand Standar ard d, wherea whereass an ‘inf ‘informati ormative ve’’ app appendi endix x is only only for for info inform rmat atio ion n and and guidance. Copyright © Copyright STANDARDS STANDARDS AUSTRALIA/ AUSTRALIA/ STANDARDS STANDARDS NEW ZEALAND ZEALAND Users of Standards Standards are reminded reminded that copyright copyright subsists in all Standards Standards Australia and Standards Standards New Zealand publications publications and software. software. Exce Except pt wher wheree the the Copy Copyri righ ghtt Act Act allo allows ws and and exce except pt wher wheree prov provid ided ed for for belo below w no publ public icat atio ions ns or soft softwa ware re prod produc uced ed by Standards Standards Australia Australia or Standards Standards New Zealand may be reproduced, reproduced, stored in a retrieval retrieval system system in any form or transmitted transmitted by any means without without prior permiss permission ion in writin writing g from Standar Standards ds Austra Australia lia or Standa Standards rds New Zealand Zealand.. Permis Permissio sion n may be conditi conditiona onall on an appropriate appropriate royalty payment. payment. Australian requests requests for permission permission and information information on commercial commercial software royalties should be directed directed to the head office of Standards Australia. New Zealand requests should be directed to Standards New Zealand. Up to 10 percent percent of the technic technical al content content pages pages of a Standar Standard d may be copied copied for use exclusiv exclusively ely in-hous in-housee by purchaser purchaserss of the Standard without payment of a royalty or advice to Standards Australia or Standards New Zealand. Inclusion Inclusion of copyright copyright material in computer computer software software programs is also permitted permitted without without royalty royalty payment provided such programs programs are used exclusively in-house by the creators of the programs. Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever the Standard is amended or revised. The number and date of the Standard should therefore be clearly identified. The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia or Standards New Zealand at any time. AS/NZS 1594:1997 3 CONTENTS Page SECTION SECTION 1 SCOPE SCOPE AND GENERA GENERAL L 1. 1 SC OP OPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 REFE EFEREN RENCED CED DOCUM DOCUMEN ENT TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 3 DE FI FIN I TI TI ON ON S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 DESIGNA ESIGNATI TION ON OF GRAD GRADE E. . . . . .. . . . . . . .. . . . . . . . . .. . . . .. . . . . 1.5 ROUN OUNDING DING OF TEST TEST RE RESULT SULT VAL VALUES . . . . . . . . . . . . . . . . . . . . . . . . 1. 6 MA RK RKI N G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 5 6 7 7 SECTION SECTION 2 MANUFACTURING MANUFACTURING REQUIREMENTS REQUIREMENTS 2. 1 SC OP OPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 STEELTEEL-M MAKING AKING PROC ROCESS ESS . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 CHEM HEMICA ICAL COMP COMPOS OSITI ITION ON . . . . . . . . . . . . . . . . . . . . . . . . . 2.4 FREE REEDOM FROM FROM DEFE DEFECT CTS S . . . .. . . .. . . . .. . . . .. . .. . .. 2.5 DIME IMENSI NSIONAL ONAL TOLE TOLERA RAN NCES CES . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . . . .. . . . . .. . .. . . . .. . .. . . . . . .. . . 8 8 8 8 8 SECTION SECTION 3 MECHANICAL MECHANICAL PROPERTY PROPERTY REQUIREME REQUIREMENTS NTS 3. 1 SC OP OPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 SELECT ELECTIION OF TES TEST SAMP SAMPL LES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 3.3 PREPARA REPARATI TION ON OF OF TEST TEST PIEC PIECES ES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.4 TENS ENSILE TEST TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3. 5 BEN D T ES EST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6 STRA TRAIN-AG IN-AGE E TE TENSI NSILE TEST EST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 12 12 12 12 13 APPENDICES A PURC URCHAS HASING ING GUID GUIDELI ELINE NES S .. . .. . . .. . . . .. . . . .. . .. . . B MEANS EANS FOR DEMO DEMONSTRAT NSTRATIN ING G COMP COMPLIA LIANCE NCE WITH WITH THIS STAND STANDAR ARD D... ........ ...... ...... .... ..... C RECO RECOMM MMEN ENDED DED MINIMU MINIMUM M INTERN INTERNAL AL RADII ADII OF COLD BEN BENDS IN FORM FORMING ING . . . . . . . . . . . . . . . . . . . . . . . . D METH ETHOD FOR FOR THE THE STR STRAI AIN N-AGE -AGE TEN TENSILE SILE TES TEST T . .. .. .. . . . . . . . . . 15 . . . . . . . . . 17 . . . . . . . . . 19 . . . . . . . . . 20 AS/NZS 1594:1997 4 STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Hot-rolled steel flat products S E C T I O N 1 S CO P E A N D G E N E R A L 1.1 SCOP SCOPE E This This Standa Standard rd specifies specifies requirement requirementss for hot-roll hot-rolled ed steel steel plate, plate, floorpl floorplate, ate, sheet sheet and strip, strip, rolled rolled on a contin continuo uous us mill, mill, in thickne thicknesses sses up to 8 mm for formabili formability ty and extr xtra form formab abil ilit ity y grade gradess and and up to 16 mm for for oth other grad rades, es, and for for wid widths up to 2000 mm. It includes slit material, provided that the parent material has an as-rolled width of not less than 600 mm. The Standard specifies the following grade requirements: (a) For analysis grades —chemical composition only. (b) For formabil formability ity grades, grades, extra extra formab formabili ility ty grades, grades, and structu structural ral grades grades includ including ing weather-resistant weather-resistant grades — both chemical composition composition a nd mechanical properties. properties. (c) For floorplate —both chemical composition and mechanical properties. The Stan Stand dard ard per permits mits the the addi dditio tion achievement of special properties. of boron ron and and micro icro--allo alloying ing ele element ments for the NOTES: 1 This Standa Standard rd does does not cove coverr the followin following: g: (a) Steel plate for boilers and and pressure pressure vessels vessels (see AS 1548). 1548). (b) Hot-rolled Hot-rolled structura structurall steel plates, plates, floorplates floorplates and slabs (see AS/NZS 3678). 2 Advi Advice ce and recom recomme menda ndation tionss on inform informatio ation n to be supp supplie lied d by the purcha purchase serr at the time of  enquiry or order are contained in the purchasing guidelines set out in Appendix A. 3 Altern lternaative tive mean eans Appendix B. for demon emonsstrati trating ng comp complliance iance with with this this Stan Stand dard ard are give iven in 1.2 1.2 REFER REFERENCED ENCED DOCUMENTS DOCUMENTS The The follow following ing docum document entss are are referred referred to in this this Standard: AS 1199 1199 Sampling Sampling procedure proceduress and tables tables for inspecti inspection on by by attribut attributes es 1391 1391 Meth Method odss for for tens tensile ile testi testing ng of metals metals 1399 1399 Guide Guide to AS AS 1199— 1199— Sampli Sampling ng proced procedure uress and and tabl tables es for inspe inspecti ction on by attrib attribut utes es 1548 1548 Steel Steel plate platess for pressu pressure re equip equipmen mentt 2338 2338 Preferred Preferred dimen dimensi sion onss of wrough wroughtt meta metall produ products cts 2505 2505 2505 2505.1 .1 Meth Method odss for bend bend and and rela related ted testi testing ng of of metal metalss Part 1: Sheet, Sheet, strip strip and and plate plate 2706 2706 Numeric Numerical al val value uess — Roun Roundi ding ng and inter interpret pretati ation on of limiti limiting ng valu values es AS/NZS ISO 9000 9000 Quali Quality ty manage managemen mentt and quali quality ty assu assuran rance ce sta stand ndard ardss 9000 9000.1 .1 Part 1: Guide Guidelin lines es for sele selecti ction on and use use 9004 9004 9004 9004.1 .1 Quali Quality ty manage managemen mentt and quali quality ty syst system em elemen elements ts Part 1: Guide Guidelin lines es COPYRIGHT 5 AS/NZS 1594:1997 SAA HB18 Guidelin Guidelines es for thirdthird-party party certificatio certification n and and accreditat accreditation ion HB18.28 B18.28 Guide uide 28—Gener 28—General al rule ruless for for a model model thir third-p d-part arty y certi certifi ficat catio ion n syst system em for for products AS/NZS 1050 1050 Meth Method odss for for the the analy analysi siss of iron iron and steel steel (all parts) parts) 1050 1050.1 .1 Part 1: Sampli Sampling ng iron iron and and steel steel for chemic chemical al analys analysis is 1365 1365 Tolera Toleranc nces es for flat-rol flat-rolle led d steel steel produ product ctss 3678 3678 Structu Structural ral steel— steel— Hot-ro Hot-roll lled ed plate plates, s, floor floorpl plate atess and and slabs slabs 1.3 1.3 DEFINIT DEFINITION IONS S For the the purpos purposee of this Standard, Standard, the definitio definitions ns below below apply. 1.3.1 .3.1 Ageing geing— — a term term appl applie ied d to chang changes es in mecha mechanic nical al prope propertie rtiess of low low carbon carbon steel steel which which occu occurr with the pass passage age of time, time, and and which which adver adversely sely affect affect formabi formabilit lity. y. Ageing Ageing accelerates as the temperature is raised. 1.3. 1.3.2 2 Cast Cast analy analysis sis — a chemic chemical al analy analysis sis deter determine mined d on a test test sample sample taken taken durin during g the the casting of the liquid steel. 1.3. 1.3.3 3 Edge Ed ge conditio conditions ns Trimmed edge edge — the Trimmed the resu result ltin ing g edge edge produ produce ced d by the the remov removal al of materi aterial al by mechani mechanical cal means means or gas cutting cutting;; also referred referred to as sheared sheared edge or slit edge. Untrimmed edge — the the edge produced produced by rolling rolling between between horizon horizontal tal rolls, rolls, with or without vertical edging rolls; also referred to as mill or universal edge. 1.3. 1.3.4 4 Floo Floorp rplat latee — a hothot-ro roll lled ed produ product ct supp suppli lied ed in cut leng length thss or in coil coilss, havin aving g a roll rolled ed rais raised ed patt patter ern, n, at regul regular ar inte interva rvals, ls, on one one surfac urface, e, with with a minimu minimum m width width of  600 600 mm and a nomin nominal al minimu minimum m thick thickne ness ss of 2 mm. Its edges edges may be either either trimmed or untrimmed. 1.3. 1.3.5 5 Hot-ro Hot-rolle lled d sheet sheet —a hot-ro hot-rolle lled d produ product ct supp suppli lied ed in cut cut lengt lengths hs and and produ produce ced d by cutt cutting ing from a coil coil rolle rolled d on a conti continu nuou ouss mill. mill. It has a width width of a least 600 mm and a nomin nominal al thic thickn kness ess of less less than than 3 mm. mm. The edges edges of the the sheet sheet may be eith either er trimmed trimmed or untrimmed. 1.3. 1.3.6 6 Longi Longitudi tudinal nal directi direction on— — the the direct direction ion of greate greatest st extens extensio ion n of the steel steel durin during g rolling. 1.3.7 .3.7 Plate late —a hot-rolle hot-rolled d product product supplied supplied in cut lengths lengths and produce produced d by cutting cutting from a coil oil roll rolled ed on a cont ontinu inuous mill ill. It has a wid width of at lea least 600 mm and a nomi nomin nal thickness of 3 mm minimum. Its edges may be either trimmed or untrimmed. 1.3.8 1.3.8 Product Product analys analysis is —a chemical analysis determined on a test sample of the finished product. 1.3.9 .3.9 Slit strip strip— — a coiled coiled produ product ct produc produced ed by slitt slitting ing a parent parent coil coil which which has has a width width of at least 600 mm. This opera operati tion on results results in two two or more coils coils being being produ produce ced d from from the the one parent coil. 1.3.10 .3.10 Str Strip ip—a —a continu continuou ously sly rolled rolled product product of any width or thickness thickness,, supplied supplied in coil form. Its edges may be trimmed or untrimmed. 1.3.11 .3.11 Te Test st batc batch h — a quant quantit ity y of hot-rol hot-rolle led d produ product ct proces processed sed from the same cast of  steel teel unde underr sim similar ilar cond condit itio ions ns in one one of the the follo followi wing ng thic thickn knes esss rang ranges es:: ≤3.0 mm, >3.0 mm to ≤6.0 mm, and >6.0 mm. 1.3. 1.3.12 12 Test Test piece piece—a —a prepared piece for testing, made from a test specimen. 1.3.13 .3.13 Test Test samp sample le— — a porti portio on of materi material al or prod produc uct, t, or a grou group of item items, s, selec selecte ted d from a batch by a sampling procedure. COPYRIGHT AS/NZS 1594:1997 6 1.3. 1.3.14 14 Test Test spec specim imen en— — a portio ortion n or a singl singlee item item take taken n from from the the test test samp sample le for for the the purpose purpose of applyi applying ng a particular particular test. 1.3.15 .3.15 Te Test sting ing— — the process process of carrying out the the chemical chemical analysis analysis and mechanical mechanical tests required by this Standard. 1.3.16 1.3.16 Transvers Transversee directio direction n — the the direct direction ion at right right angl angles es to the direct directio ion n of great greatest est extension extension of the s teel during rolling. rolling. 1.4 1.4 DESIGNAT DESIGNATIO ION N OF GRADE GRADE 1.4. 1.4.1 1 Ge Genera nerall The The stee steell desi design gnati ation on shall shall compri comprise se the the numbe numberr of this this Austra Australia lian/  n/  New Zealand Zealand Standar Standard, d, i.e. AS/NZS 1594, 1594, followed followed by a hyphe hyphen n and additio additional nal characters characters in accordance with Clauses 1.4.2 to 1.4.5, as appropriate. 1.4. 1.4.2 2 Analy Analysi siss gra grades des Designation The designa designatio tion n for analys analysis is grades grades shall shall consist consist of a six-chara six-character cter alphanumeric system in accordance with the following: (a) First First characte character, r, the lette letterr ‘H’ to indi indicat catee hothot-roll rolled ed steel steel.. (b) Second Second characte character, r, a letter letter to indicat indicatee deoxid deoxidatio ation n practice practice as follows: follows: A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . alu alumin minium ium kill killeed. K.. ... .... ... ... ... ... sili silicon con kille killed, d, with with or withou withoutt alum alumini inium um addi additio tions ns.. U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unspecified deoxidation. NOTE: NOTE: The chara charact cter er ‘U’ indicat indicates es that that the steelm steelmak aker er has the option option to decide decide on the deoxidation deoxidation practice. (c) (c) A four-d four-dig igit it series series desig designa nati tion on,, as follo follows ws,, wher wherei ein n the the firs firstt two two dig digits its of the the numbe numberr indica indicate te the type type of steel steel and and the the last last two digits digits indic indicate ate the approx approxima imate te mean of the specified carbon range: 10XX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . plai lain carb carbo on stee steels ls.. Modificatio Modification n symbols Modifica Modification tion symbols symbols are added added to the grade designat designatio ion n given in Clause as follows: (a) The The prefix prefix letter letter ‘X’ is used used to indi indicat catee a major major deviat deviatio ion n in chemi chemica call comp compos ositi ition on of any grade from the corresponding AISI-SAE grade. NOTE: NOTE: Inform Informat ation ion on AISI-SAE AISI-SAE grades grades is given given in the releva relevant nt steel steel produ products cts manu manual al of  the the Iron Iron and and Steel Steel Soci Society ety of AIME AIME whic which h is loca located ted at 410 410 Comm Common onwe weal alth th Drive, rive, Warrendale, PA 15086, USA. (b) The lette etterr ‘B’ is used used to ind indicat cate that the stee teel is boron ron-treat treateed, and and is plac laced between the second and third digits of the four-digit series designation.  Ex  E x am p l e s of de s i g na t i on : AS/NZS 1594–HK10B55. 1.4.3 1.4.3 A S/ S / N ZS Z S 1 59 59 4– 4–A 1 00 00 6, 6, A S /N /N Z S 1 59 59 4– 4– H XA X A 1 01 01 6, 6, Formab Formability ility grades grades Designation The The desi desig gnati ation for for form ormabi ability grad rades shal hall three-character alphanumeric alphanumeric system in accordance with the f ollowing: ollowing: con consist ist of (a) First First characte character, r, the lette letterr ‘H’ to indi indicat catee hothot-roll rolled ed steel steel.. (b ) Se co cond char ac acte r, a (see Clause (c) Third Third character, character, a digit digit indicat indicating ing formability formability in accordan accordance ce with the the followin following: g: let ter, U or 1—commercial forming. 3—deep drawing. 4—extra-deep drawing. COPYRIGHT A, indica ting de oxidation a pra ct ctice AS/NZS 1594:1997 7  Example  Examp le of designation designat ion : AS/NZS AS/NZS 1594– 1594– HA1. Modification symbol The Modification The suffix uffix lette letterr ‘N’ ‘N’ is adde added d to the the grade grade desig design natio ation n given in Clause to indicate that the steel is non-ageing.  Example  Examp le of designation designat ion : AS/NZS AS/NZS 1594– 1594– HA4N. 1.4. 1.4.4 4 Extra Extra formabil formability ity grad grades es The desig designa natio tion n for extra extra formab formabili ility ty grade gradess shall shall consist consist of a five-charac five-character ter alphanu alphanumeric meric system system in accordanc accordancee with the following following:: (a) First two characters, characters, the the letters letters ‘XF’ to indica indicate te extra formabil formability ity.. (b) Third Third to fifth charact characters, ers, three three digits digits indicatin indicating g the nomina nominall minimum minimum yield yield strength strength,, in megapascals.  Examples  Examp les of designation desi gnation : AS/NZS 1594–XF300, AS/NZS 1594–XF500. 1.4. 1.4.5 5 Structura Structurall grade gradess Designation T he he de si si gn gna ti tion fo r s tr tr uc uctura l gra de des s ha hall five-character alphanumeric system in accordance with the following: consist of a (a) First First characte character, r, the lette letterr ‘H’ to indi indicat catee hothot-roll rolled ed steel steel.. (b ) Se co cond char ac acte r, a let ter, U or A, indica ting de oxida tion (see Clause Clause,, or W indica indicating ting a w eather-resis eather-resistant tant grade. grade. (c) Third Third to fifth character characters, s, three digit digitss indicat indicating ing the nominal nominal minimum minimum yield yield strength, strength, in megapascals. pra ct ctice  Examples  Examp les of designation desi gnation : AS/NZS 1594–HA200, AS/NZS 1594 –HW350. Modificatio Modification n symbol A suffix number number preceded preceded by a slash is is added to the the grade grade design esignat atio ion n give given n in Clau Clause se 1.4.5 .1 to indi indica cate te any any devi deviat atio ion n from from the the base grade grade mechanical mechanical property requirements. requirements.  Example  Examp le of designation designat ion : AS/NZS 1594–HU300/1. 1.5 1.5 ROUNDING ROUNDING OF TEST TEST RESULT RESULT VALUES VALUES 1.5. 1.5.1 1 General eneral With the excepti exception on of the yield strength strength and tensile tensile strength strength results, results, the observ observed ed or calc calcula ulate ted d valu values es shall shall be round rounded ed to the same numbe numberr of figur figures es as in the specified specified values values and then compared compared with with the the specified specified values. values. For example, example, for specified specified maximu maximum m or minimu minimum m values values of 2.5, 2.50 2.50 and and 2.500 2.500,, the observed observed or calcu calcula late ted d valu valuee would be rounded to the nearest 0.1, 0.01 and 0.001, respectively (see also AS 2706). 1.5. 1.5.2 2 Tensi Tensile le prop propertie ertiess The determine determined d value value of tensil tensilee strength strength shall be rounded rounded to the the neares nearestt 10 MPa and the the dete determin rmined ed value value of yield yield stren strengt gth h shall shall be rounde rounded d to the nearest 5 MPa. 1.6 MARKI MARKING NG Each Each coil coil or shipp shippin ing g unit unit shal shalll be clear clearly ly and and dura durabl bly y mark marked ed or tagged tagged to indicate the following: following: (a) Steel Steel grade grade desig designa natio tion. n. (b) Dimens imensio ion ns. (c) Name or or registe registered red trade trade name name or mark mark of the the manufact manufacture urer. r. (d) (d) Batc Batch h ident identifi ifica catio tion. n. NOTES: 1 If the marked marked portion of the material material is subs subsequ equentl ently y removed removed then these these markings markings are to be transferred to each remaining portion of the material. 2 Manufa Manufacturer cturerss making making a statement statement of complianc compliancee with this Austral Australian/New ian/New Zealand Zealand Standard Standard on a product product or on packaging packaging or promotional promotional material material related to that product product are advised advised to ensure that such compliance is capable of being verified. COPYRIGHT AS/NZS 1594:1997 8 S E C T I O N 2 M A N U F A C T U RI N G R E Q U I R E M E N T S 2.1 SCOP SCOPE E This This Secti Section on spec specifi ifies es gener general al manufa manufact cturi uring ng requirem requirement entss inclu includi ding ng chemical composition and dimensional tolerances. 2.2 2.2 STEEL STEEL-MAKI -MAKING NG PROCES PROCESS S The steel shall be made by the basic oxyge oxygen n process process or an electric electric process, process, at the manufactur manufacturer’s er’s option option.. Where Where test certificat certificates es are supplie supplied, d, they shall identify identify the steel-making process. If analysis analysis grades grades are required required to be fine-graine fine-grained, d, the the steel-maki steel-making ng practice practice shall ensure ensure that that the the steel steel has has a minimum minimum solub soluble le alumin aluminiu ium m cont conten entt of 0.010 0.010% % or a minimu minimum m total total aluminium aluminium content content of 0.015%. 0.015%. 2.3 2.3 CHEMICAL CHEMICAL COMPOSITI COMPOSITION ON 2.3. 2.3.1 1 Ge Genera nerall The The metho method d of samplin sampling g for chemi chemica call analy analysi siss shall shall be in accor accordan dance ce with AS/NZS 1050.1 1050.1.. Chemical Chemical composit composition ion shall shall be determin determined ed by any procedu procedures res that that are at least as accurate as those given in AS/NZS 1050 (all parts). 2.3. 2.3.2 2 Cast Cast anal analysi ysiss Wherever Wherever possible possible a chemical chemical analysis analysis of the steel from each cast shall shall be made to determine determine the proporti proportion onss of the the specified specified elements. elements. In cases where it is impr impract actic icab able le to obta obtain in sampl samples es from from liqu liquid id stee steel, l, anal analys ysis is on tes test samp sample less take taken n in accordance with AS/NZS 1050.1 may be reported as cast analysis. The The repor reported ted cast cast analy analysis sis of the the steel steel shall confor conform m to the the limits limits give given n in Tables Tables 2.1 to 2.3 for the appropriate grade. 2.3. 2.3.3 3 Prod Product uct analysis analysis (for analy analysis sis grade gradess only) only) For steels steels suppli supplied ed in accordance accordance with the cast analysis analysis requirement requirementss of Table 2.1, 2.1, the results of individ individual ual determin determinatio ations ns carried out on the product shall be within the product analysis tolerance limits specified in Table Table 2.4. Where several several determin determinatio ations ns of a single single element element are carried carried out out on products products from any one cast, the spread of individu individual al results results shall not extend extend both above above and below below the range specified in Table 2.1. 2.4 FREE FREED DOM FROM FROM DEFE DEFECT CTS S The stee steell sha shall be free free from from pip pipe, har harmful mful segregation, surface flaws and other defects detrimental to its use. If, after after acce accept ptan ance ce of the the stee steell and and provi provide ded d that that it has has been been prop proper erly ly treat treated ed after after deliver delivery, y, subsequ subsequent ent processin processing g reveals reveals that that it contain containss defects defects found found to be detrimen detrimental, tal, the steel shall be deemed not to comply with this Standard. 2.5 2.5 DIMENSIO DIMENSIONAL NAL TOLERANCE TOLERANCES S tolerances tolerances specified in A S/NZS 1365. 1365. Steel teel shall hall be sup supplie plied d to the the dimen dimensi sion onal al COPYRIGHT AS/NZS 1594:1997 9 TABL ABLE 2.1 2.1 CHEMICAL COMPOSITION REQUIREMENTS FOR ANALYSIS GRADES GRADES* * Chemical composition (cast analysis), % (see Note 1) Grade Car Carbon bon Aluminium Sulf Sulfur ur (see Notes 2 and 3) Sili Siliccon Mang Mangan aneese Phosp hospho horu russ Titanium Mi n. Ma x. Ma x. Ma x. Ma x. Ma x. Mi n. Ma x. Ma M a x. HA1006 HA1010 HA1016 — 0.08 0.12 0.08 0.13 0.18 0.03 0.03 0.03 — 0.30 0.60 0.40 0.60 0.90 0.040 0.040 0.040 0.030 0.030 0.035 0.100 0.100 0.100 0.040 0.040 0.040 HXA1016 HK1042 HK10B55 (Note 4) 0.12 0.39 0.50 0.18 0.47 0.60 0.03 0.50 0.50 0.80 0.60 0.60 1.20 0.90 0.90 0.040 0.040 0.040 0.035 0.035 0.035 0.100 0.100 0.100 0.040 0.040 0.060 HK 1073 0. 68 0. 78 0. 50 0. 0 . 70 1. 0 0 0. 040 0. 035 0. 100 0. 040 * The use of sulfide-modif sulfide-modificatio ication n steel-making steel-making t echniques echniques for these these grades is permitted. permitted. NOTES: 1 The The following following elements elements m ay be present present to the limits limits stated, stated, subject subject to a maximum maximum total total conten contentt of 1%: (a) Copper— Copper— 0.35% 0.35% m aximum. aximum. (b) Nickel— Nickel— 0.35% 0.35% maximum. maximum. (c) Chromiu Chromium— m— 0.30% 0.30% m aximum. aximum. (d) Molybd Molybdenu enum— m— 0.10% 0.10% maximum. maximum. 2 The The limits limits specifi specified ed are for total total or solubl solublee aluminiu aluminium. m. 3 For For fine fine-g -gra rain ined ed steel steels: s: solu solubl blee alumi alumini nium um 0.010 0.010% % minimum, minimum, or tota totall alumi alumini nium um 0.015 0.015% % minim minimum um (see Clause 2.2). 4 For For boronboron-tre treate ated d steels: steels: acid-solu acid-soluble ble boron boron 0.0005 0.0005% % minimum minimum or total total boron boron 0.0008% 0.0008% minimum, minimum, and titanium titanium 0.060% maximum. COPYRIGHT AS/NZS 1594:1997 10 TAB TABLE 2.2 CHEMICAL COMPOSITION REQUIREMENTS FOR FORMABILITY, STRUCTURAL AND AND WEATHER-RESI WEATHER-RESISTANT STANT GRADES* GRADES* Chemical composition (cast or product analysis), % Grade C arbon S il ic on M anganese P hosphorus Su S ul fu r C hrom iu m N ic kel Aluminium (see Titanium Note 1) C opper Microalloying elements M ax. Mi M in . M ax. M ax. M in . M ax. Ma M ax. M in . M ax. M ax. M in . M ax. M ax. M ax. M ax. HA1 HA3 HA4N 0.13 0.08 0.08 — — — 0.03 0.03 0.03 0.50 0.40 0.40 — — — 0.040 0.030 0.030 0.030 0.025 0.020 — — — (see Note 2) (see Note 2) (see Note 2) (see Note 2) (see Note 2) (see Note 2) — — — (see Note 2) (see Note 2) (see Note 2) 0.100 0.100 0.100 0.040 0.040 0.040 (see Note 3) (see Note 3) (see Note 3) HA200 HA250, HU250 HA300, HU300 0.15 0.20 0.20 — — — 0.35 0.35 0.35 0.60 1.20 1.60 — — — 0.030 0.040 0.040 0.030 0.030 0.030 — — — (see Note 2) (see Note 2) (see Note 2) (see Note 2) (see Note 2) (see Note 2) — — — (see Note 2) (see Note 2) (see Note 2) 0.100 0.100 0.100 0.040 0.040 0.040 (see Note 4) (see Note 4) (see Note 4) HA300/1 HA350 HW350 0.20 0.20 0.15 — — 0.15 0.35 0.35 0.75 1.60 1.60 1.60 — — 0.055 0.040 0.040 0.160 0.030 0.030 0.040 — — 0.35 (see Note 2) (see Note 2) 1.05 (see Note 2) (see Note 2) 0.55 — — 0.15 (see Note 2) (see Note 2) 0.50 0.100 0.100 0.100 0.040 — — (see Note 4) (see Note 5) (see Note 5) H A4 00 0 .2 0 — 0 .3 5 1 .6 0 — 0 .0 40 0 .0 30 — ( see No te 2) ( see No te 2) — ( see No te 2) 0 .1 0 0 — ( see No te 5) * The use of sulfide-modification steel-making techniques for these grades is permitted. NOTES: 1 Limits specif specified ied are for total or solubl solublee aluminium. aluminium. 2 The following following elements elements may be present present to the limits stated, stated, subject subject to a maximum total conten contentt of 0.30%: 0.30%: (a) Copper— Copper— 0.15% 0.15% maximum. maximum. (b) Nickel— Nickel— 0.15% 0.15% maximum. (c) Chromium Chromium —0.15% maximum maximum.. (d) Molybdenu Molybdenum— m— 0.05% maximum. maximum. 3 Niobium Niobium —0.010% maximum. maximum. Niobium Niobium plus vanadium— vanadium— 0.030% 0.030% maximum. maximum. Boron (total)— 0.015% 0.015% maximum. maximum. 4 Niobium — 0.010% maximum. maximum. Niobium plus vanadium vanadium — 0.030% maximum. 5 Vanadium— Vanadium— 0.10% 0.10% maximum. maximum. Niobium Niobium plus vanadi vanadium um plus titanium—0.15% maximum. COPYRIGHT AS/NZS 1594:1997 11 TABL ABLE 2.3 2.3 CHEMICAL COMPOSITION REQUIREMENTS FOR EXTRA FORMABILITY GRADES* Chemical Chemical compositi composition on (cast (cast or product product analysis), analysis), % (see Note 1) Grade Carbon Carbon Silico Silicon n XF300 XF400 XF500 Manganese Phosphorus Sulf Sulfur ur Chrom Chromium ium Molybdenum Aluminium (see Note 2) Titanium Microalloying elements Ma x. Ma x. Ma x. Ma x. Ma x. Ma x. Ma x. Ma x. Ma x. Ma x. 0.16 0.11 0.11 0.35 0.35 0.35 1.60 1.60 1.80 0.025 0.025 0.025 0.020 0.020 0.020 0.15 0.70 0.70 0.10 0.50 0.50 0.100 0.100 0.100 0.040 — — (see Note 3) (see Note 4) (see Note 4) * The use of sulfide-m sulfide-modificat odification ion steel-making steel-making techniques techniques for these these g rades is permitted. permitted. NOTES: 1 The The following following elements elements may be present present to the limits limits stated: stated: (a) (a) Coppe Copper— r— 0.15% 0.15% maximum. maximum. (b) (b) Nicke Nickel— l— 0.15% 0.15% maximu maximum. m. 2 Limits Limits speci specified fied are for total total or solubl solublee aluminiu aluminium. m. 3 Niobium— Niobium— 0.010 0.010% % m aximum. aximum. Niobium Niobium plus vanadium— vanadium— 0.030% 0.030% maximum. maximum. 4 Vanadiu Vanadium— m— 0.10% m aximum. aximum. Niobium Niobium plus vanadi vanadium um plus plus titaniu titanium—0.15% m—0.15% maximum. maximum. TABL ABLE 2.4 2.4 AS/NZS 1594:1997 11 TABL ABLE 2.3 2.3 CHEMICAL COMPOSITION REQUIREMENTS FOR EXTRA FORMABILITY GRADES* Chemical Chemical compositi composition on (cast (cast or product product analysis), analysis), % (see Note 1) Grade Carbon Carbon Silico Silicon n XF300 XF400 XF500 Manganese Phosphorus Sulf Sulfur ur Chrom Chromium ium Molybdenum Aluminium (see Note 2) Titanium Microalloying elements Ma x. Ma x. Ma x. Ma x. Ma x. Ma x. Ma x. Ma x. Ma x. Ma x. 0.16 0.11 0.11 0.35 0.35 0.35 1.60 1.60 1.80 0.025 0.025 0.025 0.020 0.020 0.020 0.15 0.70 0.70 0.10 0.50 0.50 0.100 0.100 0.100 0.040 — — (see Note 3) (see Note 4) (see Note 4) * The use of sulfide-m sulfide-modificat odification ion steel-making steel-making techniques techniques for these these g rades is permitted. permitted. NOTES: 1 The The following following elements elements may be present present to the limits limits stated: stated: (a) (a) Coppe Copper— r— 0.15% 0.15% maximum. maximum. (b) (b) Nicke Nickel— l— 0.15% 0.15% maximu maximum. m. 2 Limits Limits speci specified fied are for total total or solubl solublee aluminiu aluminium. m. 3 Niobium— Niobium— 0.010 0.010% % m aximum. aximum. Niobium Niobium plus vanadium— vanadium— 0.030% 0.030% maximum. maximum. 4 Vanadiu Vanadium— m— 0.10% m aximum. aximum. Niobium Niobium plus vanadi vanadium um plus plus titaniu titanium—0.15% m—0.15% maximum. maximum. TABL ABLE 2.4 2.4 PRODUCT PRODUCT ANALYSIS TOLERANCES TOLERANCES FOR G RADES GIVEN IN TABLE TABLE 2.1 Tolerance Tolerance,, % Eleme lement nt Specified fied maxim aximum um,, % Under Under minim minimum um limit limit Carbon ≤ 0.25 Over Over maxim maximum um limit limit 0.03 0.03 0.04 0.03 0.04 0.05 ≤ 0.50 — — 0.010 0.05 Manganese ≤ 1. 50 0. 10 0. 10 Phosphorus ≤ 0. 040 — 0. 010 Sulfur ≤ 0. 040 — 0. 010 >0.25 >0.40 ≤ 0.40 ≤ 0.80 ≤ 0.05 Silicon >0.05 COPYRIGHT AS/NZS 1594:1997 S E C T I O N 12 3 M E C H A N I C A L P R O P ER T Y R E Q U I R E M E N T S 3.1 SCOP SCOPE E This This Section Section specifies specifies the mechanical mechanical property property requir requirements ements for hot-rolled hot-rolled flat flat produ products cts in terms terms of the the tensi tensile le test test,, a strainstrain-ag agee tensil tensilee test test and the the bend bend test, test, and and gives gives requiremen requirements ts for the the selection selection of test samples and the preparation preparation of test test pieces. pieces. 3.2 3.2 SELEC SELECTIO TION N OF TEST TEST SAMPLES SAMPLES 3.2.1 3.2.1 Tensile Tensile and strain-age strain-age tensile tensile tests Samples for the tensile and strain-age tensile tests tests shall shall be take taken n midway midway between between the the centre centre and and the the edge edge of the the as-roll as-rolled ed produ product ct to provide tensile test pieces that are aligned in the appropriate direction, as follows: (a) longitudi dinal nal For structu structural ral,, extra extra formab formabili ility ty and weatherweather-resist resistant ant grades grades — the longitu direction. (b) For formability formability grades grades —the transverse direction. 3.2.2 .2.2 Bend test testss Samples Samples for bend tests shall be taken taken midway midway between between the centre centre and the edge of the as-rolled product and shall be aligned in the transverse direction. 3.2. 3.2.3 3 Samp Samplin ling g from coil coil When When plat plate, e, floorpl floorplat atee or shee sheett is supplie supplied d in coil form or from a coil, coil, the the test test sample sample shall shall be taken taken either either at a sufficie sufficient nt dista distanc ncee from the ends ends of  the the coil coil to be represen representa tativ tivee of the the major major portion portion of the coil, or from the the middl middlee third third of  the coil length. 3.3 PREPARATION PREPARATION OF TEST PIECES PIECES 3.3. 3.3.1 1 Ge Genera nerall Any test piece piece that shows defectiv defectivee machinin machining, g, or other other flaws, flaws, shall be discarded and another test piece substituted. NOTE: OTE: Test Test spec specim imen enss may may be stra straig ighte htene ned d cold cold befo before re prepa preparat ration ion of the the test test piece iece,, in accorda accordance nce with AS 1391 or AS 2505.1, 2505.1, as appropriate appropriate.. 3.3. 3.3.2 2 Test Test piece piece for the tensile tensile and strain-a strain-age ge tensile tensile test Prepare a non-proportional test piece piece of f ull product product thickne thickness ss in accordance accordance with AS 1391. 1391. 3.3.3 .3.3 Test piec piecee for the bend bend test test accordance with AS 2505.1. Prepare Prepare a test test piece piece of full full produ product ct thic thickne kness ss in 3.4 TE TENSI NSILE LE TEST TEST When tested in accordance accordance with A S 1391, 1391, the tensile properties properties shall be not less than those specified in Tables 3.1 or 3.2, as appropriate to the grade. The The rate of strain strainin ing g when when approa approachi ching ng the yield yield poin pointt shall shall lie within within the the limit limitss of the standard strain rate range (category S) specified in AS 1391. 3.5 BE BEND ND TES EST T When When the the test test piec piecee is bent in accord accordanc ancee with with AS 2505 2505.1, .1, at room room temperatu temperature, re, through through 180° aroun around d a mandre mandrell of the appro appropri priat atee diamet diameter er speci specified fied in Table Tabless 3.3 and 3.4, 3.4, the the outer outer surface surface of the the test test piec piecee shall shall not not show show any any evide evidenc ncee of  cracks. NOTES: 1 Small cracks cracks at the edges edges of rectangular rectangular test test pieces, pieces, and cracks cracks which require require magnificat magnification ion to be visible, may be disregarded. 2 Info Informa rmati tion on on the reco recomm mmen ende ded d mini minimu mum m bend bend radi radiii to be used used in the cold cold formi forming ng of  hot-rolled flat products is given in Appendix C. COPYRIGHT AS/NZS 1594:1997 13 3.6 3.6 STRAIN-AGE STRAIN-AGE TENSI TENSILE LE TE TEST ST (appli (applicab cable le to non-agein non-ageing g grad grades es only only)) W he hen tested in accordance with Appendix D, the material shall be deemed to pass the test if the increa increase se in force required required to re-init re-initiat iatee plasti plasticc strai strain n after after agein ageing g is not more than than 5% of  the maximum force applied prior to ageing. TABL ABLE 3.1 3.1 TENSILE PROPERTY REQUIREMENTS FOR FORMABILITY, STRUCTURAL AND WEATHER-RESISTANT GRADES Grade HA 1 HA 3 HA4N Minimum upper yield stress Minimum tensile strength MP a MP a Elongat Elongation ion,, % m in. (see (see N otes otes 1 and 2) Nominal thickness thickness,, mm ≤3 >3 Lo=50mm Lo=80mm L o=200mm L o=50mm L o=80mm L o=200mm — 34 36 — 32 34 — 22 24 — 36 38 — 34 36 — 24 26 (see Note 3) (see Note 3) 200 300 170 280 HA200 HA250, HU250 HA300, HU300 200 250 300 300 350 400 24 22 20 22 20 18 17 16 15 28 26 24 26 24 22 19 17 16 HA300/1 HA350 HW350 300 350 340 430 430 450 20 18 — 18 16 — 15 14 15 24 22 — 22 20 — 16 15 15 HA 400 380 460 16 14 13 20 18 14 NOTES: original gauge length of test piece. 1 L o = original 2 Elongatio Elongation n testing testing is not required required for floorplate. floorplate. 3 For For desig design n purpo purpose ses, s, yiel yield d and tens tensil ilee stre streng ngth thss appr approx oxima imate te those those of Stru Struct ctur ural al Grade Grade HA200. HA200. For For spec specif ific ic information information contact contact the supplier. supplier. TABL ABLE 3.2 3.2 TENSILE PROPERTY REQUIREMENTS FOR EXTRA FORMABILITY GRADES Nominal thickness Minimum upper yield stress (see Note 1) Minimum tensile strength strength mm MP a MP a 50 80 200 ≤3 >3 300 300 440 440 28 31 26 29 20 23 XF400 ≤8 380 460 25 23 18 XF500 ≤8 480 570 18 16 14 Grade XF300 Elongation, Elongation, % min. (see N ote 2) Gauge length ( Lo) mm NOTES: 1 If a prod produc uctt does does not not exhib exhibit it a well well defin defined ed yield yield poin point, t, the the 0.2% 0.2% proo prooff stre stress ss shou should ld be determ determine ined d (see AS 1391). 2 L o = original original gauge length of the test piece. COPYRIGHT AS/NZS 1594:1997 14 TABL ABLE 3.3 3.3 180° BEND TEST REQUIREMENTS FOR FORMABILITY AND STRUCTURAL STRUCTURAL GRADES* Diameter of mandrel (see Notes 1 and 2) Grade Nominal thickness thickness,, mm ≤3 >3 ≤5 >5 HA 1 HA 3 HA4N a 0 0 a 0 0 a 0 0 HA200 HA250, HU250 HA300, HU300 0 a a a a 2a a 2a 2a HA300/1 HA350 HA400 a 2a 2a 2a 2a 2a 2a 3a 3a * For floorplat floorplate, e, bend tests are not required. required. NOTES: 1 a = thickness thickness of test piece. 2 0 indicate indicatess that the test test piece is bent flat flat on itself. itself. TABL ABLE 3.4 3.4 180° BEND TEST REQUIREMENTS FOR EXTRA FORMABILITY GRADES Grade Nominal thickness mm Diameter of mandrel (see Note) XF300 ≤8 0 XF400 ≤8 0 XF500 ≤8 0 NOTE: 0 indicates indicates that the test piece is bent flat on itself. COPYRIGHT AS/NZS 1594:1997 15 APPENDI PPENDIX X A PURCHASING GUIDELINES (Informative) A1 GENERAL ENERAL Aus Australi tralian an//New New Zeala Zealand nd Stand tandaards rds are intend tendeed to inc includ lude the the tech techni nica call requi requirem remen ents ts for relev relevan antt prod produc ucts ts,, but but do not not purpor urportt to comp compris risee all all the the necessary necessary provis provisions ions of a contract contract.. This Appendix Appendix contai contains ns advice advice and r ecommend ecommendati ations ons on the information to be supplied by the purchaser at the time of enquiry or order. A2 INFORMA NFORMATI TION ON TO BE SUPPL SUPPLIE IED D BY TH THE E PURCHA PURCHASE SER R The purchase purchaserr shoul should d supply supply the following following informati information on at the time of enquiry or order, after making making due reference to the explanation, explanation, advice advice and recommendations recommendations c ontained ontained in this this Appendix: Appendix: (a) Produc Productt form requi required red,, i.e. plate plate,, floorp floorpla late te,, sheet sheet or strip. strip. (b) (b) Design Designat atio ion n of grade grade (see (see Cla Claus usee 1.4). 1.4). (c) Whether Whether fine-grain fine-grained ed steel-makin steel-making g practice practice is requir required ed for analysis analysis grades grades of steel. steel. (d) Whether Whether a product product analysis analysis is required required and, and, if so, so, the frequency frequency of the analysi analysis. s. (e) Quantit Quantity y and deliver delivery y instructi instructions ons (dates, (dates, schedu schedules, les, deliver delivery y point). point). (f) Dimension Dimensionss of steel, steel, e.g. thi thickn ckness, ess, width, width, length length,, bundle bundle mass or coil mass. NOTES: 1 Attenti Attention on is drawn to the desirab desirability ility of specify specifying ing dimen dimensio sions ns in terms terms of AS 2338 2338.. It shou should ld be note noted d that that sizes izes not not liste listed d in AS 2338 2338 are not not nece necesssaril sarily y precl preclude uded d for for ordering purposes. 2 If steel is supplied supplied to theoretica theoreticall mass, the the density density value value 7850 7850 kg/m 3 should be used. (g) The The type of edge edge required required,, i.e. i.e. whether whether trimmed trimmed or untri untrimmed mmed (see (see Clause Clause 1.3.3). 1.3.3). (h) Wheth Whether er any further further processin processing g is requi required red for sheet sheet or plate plate produ produced ced from a coil, coil, e.g. skin-passing, pickling or oiling. NOTE: When supplied supplied in coil coil form for further processing, processing, the manufact manufacturer urer controls controls those those oper operatio ations ns that that affect affect the chemical chemical and mechan mechanica icall prope properties rties of the coil. Howev However, er, the proce process ssor or may may be respo respons nsible ible for for perfo performin rming g and and certify certifying ing mechan mechanica icall tests tests and any any operations not intended to affect the properties of the coil. (i) Any lim limita itati tion onss in respe respect ct of mass mass of coil coilss or packs packs,, or inside inside or outsi outside de diamete diameters rs of coils. NOTE: Where full coils are cut to obtain test pieces and then recoiled, the purchaser should accept accept the small coils resulting from this operation. operation. (j) (j) Defec Defects ts allo allowa wabl ble. e. NOTE: NOTE: Defec Defects ts such such as lamina laminatio tions, ns, segreg segregat ation, ion, or surfac surfacee flaws flaws cann cannot ot be compl complete etely ly quan quantifie tified. d. Where Where the prese presenc nce, e, size size or frequen frequency cy of any defect defect is conside considered red to be of  concern concern,, arrangem arrangement entss should should be made made between between t he purchase purchaserr and t he manufactur manufacturer. er. This may be achieved by the provision of acceptable type samples. Wher here defe efects cts are prese present nt and and the the prod roduct is sub submitt mitted ed for acce accep ptance ance,, the the manufacturer should be able to demonstrate fitness for purpose. (k) Wheth Whether er a bend bend test test is requi required red (see Claus Clausee 3.5). 3.5). (l) (l) Any Any limi limita tatio tions ns in respec respectt of pack packag agin ing, g, e.g. e.g. the the num number of sheet sheetss and and plat plates es per pack and the mass of packagin packaging g materials. materials. COPYRIGHT AS/NZS 1594:1997 16 (m) Whether Whether a test test certificate certificate or certif certificate icate of compli compliance ance is requi required. red. (n) Whether Whether it is the the intent intention ion of the purcha purchaser ser to inspect inspect the the steel at at the manufa manufacturer cturer’s ’s works. (o) Any specia speciall or supp supple lemen menta tary ry require requiremen ments ts.. (p) (p) Any Any infor informat matio ion n conc concer ernin ning g proc proces essin sing g or end use that that the the purc purcha hasser cons consid iders ers would assist the manufacturer. (q) Referen Reference ce to this this Stan Standar dard, d, i.e. AS/NZS AS/NZS 1594 1594.. COPYRIGHT AS/NZS 1594:1997 17 APPENDI PPENDIX X B MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD (Informative) B1 SCOPE COPE This Appendix sets out the following different means by which compliance with this Standar Standard d can be demonst demonstrated rated by the manufact manufacture urerr or supplie supplier: r: (a) Evalu Evaluati ation on by means means of stati statisti stical cal sampl samplin ing. g. (b) The The use of a produ product ct certi certific ficati ation on scheme. scheme. (c) Assurance Assurance usin using g the acceptabi acceptabilit lity y of the the supplier supplier’s ’s quality quality system. system. (d) (d) Other Other such means means propo proposed sed by the manufa manufact cture urerr or suppl supplie ierr and accep acceptab table le to the customer. B2 ST STA ATISTIC TISTICAL AL SAMPL SAMPLING ING Statis Statistic tical al sampli sampling ng is a proced procedure ure which which enabl enables es decision decisionss to be made about the quality quality of batches batches of items after inspecti inspecting ng or testing only a portion portion of those those items. This This procedur proceduree will only be valid if the sampling sampling plan has been determin determined ed on a statisti statistical cal basis basis and the follow following ing requireme requirements nts are met: (a) The sam sample ple shal shalll be drawn rawn rand randomly mly from from a populati latio on of prod product uct of known own history. The history shall enable verification that the product was made from known materials materials at essentia essentially lly the same time, by essentially essentially the the same processes processes and under under essentially the same system of control. (b) For each each diffe differen rentt sit situatio ation n, a sui suitab table sam samplin pling g plan lan nee needs to be defin efineed. A sampling sampling plan for one manufactu manufacturer rer of given given capabili capability ty and product product throug throughp hput ut may not be relevant to another manufacturer producing the same items. In order order for statis statistic tical al sampl samplin ing g to be meanin meaningf gful ul to the the cust custome omer, r, the the manufact manufacture urerr or suppl supplier ier needs needs to demonstrate demonstrate how the above above condit condition ionss have have been satisfied. satisfied. Sampling Sampling and the the establis establishmen hmentt of a sampling sampling plan plan should should be carried out in accordance accordance with AS 1199, 1199, guidan guidance ce to which is given given in AS 1399. 1399. B3 PRODUCT PRODUCT CERTIFI CERTIFICATIO CATION N The purpose purpose of product product certificat certification ion is to provide provide inde indepen pende dent nt assuran assurance ce of the the claim claim by the manuf manufact acture urerr that that produ products cts compl comply y with with the stated Standard. The The certifi certifica cati tion on scheme scheme shou should ld meet the criteri criteriaa descr describe ibed d in SAA HB18. HB18.28 28 in that, that, as well as full full type type testin testing g from inde indep pend endentl ently y sample ampled d prod produc uctio tion n and and subse subsequ quen entt verific verificat ation ion of conf conforman ormance, ce, it requi requires res the the manuf manufactu acturer rer to maintai maintain n effectiv effectivee quali quality ty planning planning to control production. production. The certification certification scheme scheme serves to indicate indicate that the the product productss consist consistentl ently y confor conform m to the requirements of the Standard. B4 SUPPLI SUPPLIER’ ER’S S QUALI QUALITY TY SYSTE SYSTEM M Wher Wheree the the manu manufact factu urer rer or sup supplie lier can demon demonstra strate te an audit audited ed and registe registered red qualit quality y manag managemen ementt system system compl complyi ying ng with with the requi requireme rements nts of the the approp appropriat riatee or stipu stipula late ted d Austra Australia lian n or inte interna rnatio tiona nall Stan Standa dard rd for a suppl supplier’s ier’s qualit quality y system or systems, systems, this this may provide provide the necessary necessary confidence confidence that that the specified requirements will be met. The quality assurance requirements need to be agreed between the customer and supplier and should include a quality or inspection and test plan to ensure product conformity. Guid uidanc ance in det determin erminin ing g the app appropr opriate iate qualit ality y mana manag geme ement syst system em is give iven in AS/NZS ISO 9000.1 and AS/NZS ISO 9004.1. COPYRIGHT AS/NZS 1594:1997 B5 18 OTHE OT HER R MEANS MEANS OF ASSESSMENT ASSESSMENT B5.1 Ge Gener neral al If the the above above metho methods ds are cons consid idere ered d inapp inapprop ropria riate te,, determ determina inati tion on of  compl complian iance ce with the requi requirem rement entss of this this Stand Standard ard may be assess assessed ed f rom the results results of  testing in accordance with Paragraphs B5.2, B5.3 and B5.4 in the assessment compliance. Irrespe Irrespect ctive ive of accept acceptab able le quali quality ty leve levels ls (AQLs) (AQLs) or test test freque frequenci ncies, es, the respon responsi sibi bili lity ty remains remains with the manufactu manufacturer rer or suppl supplier ier to supply supply produc products ts that conform conform with the full requirements of this Standard. B5.2 B5.2 Sampli Sampling ng When When test test certif certifica icate tess are required required,, test test sample sampless shall shall be take taken n from each test batch to provide the following: (a) One test test of of each each typ typee for a batch batch not not excee exceedi ding ng 100 100 t. (b) One test test of of each each type type for the the bal balanc ancee of the the batch batch.. B5.3 B5.3 Compli Complian ance ce Each Each batch batch is deeme deemed d to comp comply ly with this this Stan Standa dard rd if all all of the the samples tested give results that are within the specified limits. If any of the properties properties of the the tested samples samples give give results results outside outside the specified specified limits, limits, the requirements of Paragraph B5.4 shall apply. B5.4 Retes Retestin ting g adopted: If a retest is required, one or more of the following procedures shall be (a) Take Take two furthe furtherr test test sample sampless at random random from the the remaind remainder er of the the batch. batch. The batch batch is deemed to comply with this Standard if the results of testing both these additional samples samples comply with Clauses Clauses 3.4 to 3.6. If one of these these addition additional al samples samples fails the test, the steel of the applicable batch is deemed not to comply with this Standard. (b) Take ake test est sampl amplees from from each each roll olled unit of ste steel and and indiv dividua iduall lly y tes test the them in accord accordan ance ce with with this this Stand Standar ard. d. The rolle rolled d unit unit of steel steel is deeme deemed d to compl comply y with with this this Standa tandard rd if the the resu result ltss of testi testing ng of the the addit additio iona nall sample ampless comp comply ly with with Clauses 3.4 to 3.6. (c) Make Make two additi addition onal al tests tests on test test pieces pieces from sample sampless take taken n from a posi positi tion on as near near as pract practic icaal to the the fail faileed sam sample ple. Shou hould the resul esultts of tes testin ting of both thes thesee additio additiona nall test pieces pieces comply comply with Clauses Clauses 3.4 to 3.6, the batch batch is deemed to comply with this Standard. (d) Repr Reproce ocess ss the batch batch which has failed failed,, e.g. heat heat-trea -treatt the the batch batch again again,, and and perfor perform m another complete set of tests on test pieces selected and prepared in accordance with Claus Clauses es 3.2 and 3.3. The batch batch is deemed deemed to compl comply y with with this this Standard Standard only only if the the results results of testi testing ng of the the reproc reprocess essed ed test test pieces pieces compl comply y with the requi requiremen rements ts of  Clauses 3.4 to 3.6. COPYRIGHT AS/NZS 1594:1997 19 APPENDI PPENDIX X C RECOMMENDED MINIMUM INTERNAL RADII OF COLD BENDS IN FORMING (Informative) Figure Figure C1 contain containss graphs graphs that relate relate strip thicknes thicknesss to the minimum minimum interna internall bend radius recommended for cold forming of some structural grades. FIGURE FIGURE C1 RECOMME RECOMMENDED NDED INTERNAL INTERNAL RADII OF COLD COLD BENDS BENDS FOR VARIOUS THICKNESSES OF STRIP COPYRIGHT AS/NZS 1594:1997 20 APPENDI PPENDIX X D METHOD FOR THE STRAIN-AGE TENSILE TEST (Normative) D1 SCOPE COPE This This Appen ppendi dix x sets out out the the metho method d for for ass assessin essing g the the susc suscep epti tibi bili lity ty of  hot-rolled hot-rolled flat products to strain-age embrittlement. embrittlement. D2 PRINCIP RINCIPLE LE A tens tensil ilee test test piec piecee is stra strain ined ed in tens tensio ion n to pro produce duce a specif pecified ied permanent permanent extens extension ion and, after after an artificial artificial ageing ageing treatment, treatment, is retested retested to determine determine the effect of the ageing process on the force required to re-initiate plastic strain. D3 APPARATU PPARATUS S A tensi ensille requirements of AS 1391. D4 PROCEDU ROCEDURE RE test testiing mach achine cap capabl able of tes testin ting meta metalls to the the The procedure shall be as follows: (a) Prepare Prepare the the test test piece piece in acco accord rdanc ancee with with Claus Clausee 3.3.2. 3.3.2. (b) Strain Strain the test test piece piece in tensio tension n to produ produce ce a permane permanent nt extens extension ion of 10 ±2% of its original gauge length. Record the force required to produce this strain. (c) Subj Subject ect the test test piece piece to an accel accelerat erated ed ageing ageing treatmen treatmentt by heati heating ng it to 100 ±5°C for 30 min to 45 min. (d) Re-s Re-stra train in the the test test piec piecee in tens tensio ion n and and dete determ rmine ine the the force force requi required red to re-init re-initia iate te plastic strain. NOTE: NOTE: The force requi required red to initiate initiate plastic plastic strain strain is that that force force detect detected ed when when a sudd sudden en decrease decrease in loading r ate occurs. occurs. D5 TES EST T REP REPO ORT On comp comple leti tion on of the the test test a repo report shal shalll be issu issued ed.. The repo report rt shall include the following information: (a) Name of testin testing g autho authorit rity. y. (b) Repo Report rt numb number er and and date date of of iss issue. ue. (c) Ident Identif ifica icatio tion n of the the batc batch h of materi material al under under test. test. (d) Resu esults of the tes test, and a stat stateemen ment of comp compllianc ance requirements of this Standard. (e) Referen Reference ce to this this test meth method od,, i.e. Append Appendix ix D of AS/NZS AS/NZS 1594. 1594. COPYRIGHT or oth otherwis wise with ith the the