SANS 3575-2008 Continuous hot-dip zinc-coated carbon steel sheet of commercial and drawing qualities《商用和拉制质量的连续热浸镀锌碳素钢薄板》.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21915-4 SANS 3575:2008Edition 2 ISO 3575:2005Edition 3SOUTH AFRICAN NATIONAL STANDARD Continuous hot-dip zinc-coated carbon steel sheet of

4、 commercial and drawing qualities This national standard is the identical implementation of ISO 3575:2005 and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27

5、 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 3575:2008 Edition 2 ISO 3575:2005 Edition 3 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 107, Metallic and other inorganic coatings, in accordance with proced

6、ures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in December 2008. This SANS document supersedes SABS ISO 3575:1996 (first edition). Reference numberISO 3575:2005(E)ISO 2005INTERNATIONAL STANDARD ISO3575Third edition2005-05-15

7、Continuous hot-dip zinc-coated carbon steel sheet of commercial and drawing qualities Tles en acier au carbone galvanises en continu par immersion chaud, de qualit commerciale et pour emboutissage SANS 3575:2008This s tandard may only be used and printed by approved subscription and freemailing clie

8、nts of the SABS .ISO 3575:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the e

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11、at the address given below. ISO 2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address be

12、low or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2005 All rights reservedSANS 3575:2008This s tandard may only be used a

13、nd printed by approved subscription and freemailing clients of the SABS .ISO 3575:2005(E) ISO 2005 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International

14、Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, al

15、so take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committ

16、ees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the poss

17、ibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3575 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 12, Continuous mill flat rolled products. This third

18、 edition cancels and replaces the second edition (ISO 3575:1996), which has been technically revised. SANS 3575:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 3575:2008This s tandard may only be used and printed by approved subscrip

19、tion and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 3575:2005(E) ISO 2005 All rights reserved 1Continuous hot-dip zinc-coated carbon steel sheet of commercial and drawing qualities 1 Scope 1.1 This International Standard applies to carbon steel sheet of commercial and drawing qualit

20、ies coated by the continuous hot-dip zinc-coating process. 1.2 Zinc-coated sheet is suitable for applications where resistance to corrosion is of prime importance. 1.3 The steel sheet is produced in a number of qualities, coating mass, surface treatments, and ordering conditions. 1.4 Zinc-coated she

21、et is produced in thicknesses from 0,25 mm to 5 mm inclusive after coating, and in widths of 600 mm and over in coils and cut lengths. Zinc-coated sheet less than 600 mm wide, slit from wide sheet, will be considered as sheet. 1.5 The thickness of hot-dip zinc-coated and zinc-iron alloy sheet steel

22、may be specified as a combination of the base metal and metallic coating, or as the base metal alone. The purchaser shall indicate on the order which method of specifying thickness is required. In the event the purchaser does not indicate any preference, the thickness as a combination of the base me

23、tal and coating will be provided. Annex A describes the requirements for specifying the thickness of the base metal alone. 1.6 Zinc and zinc-iron alloy coated steel sheet may be ordered in one of two ordering conditions: a) Condition A): steel ordered to satisfy mechanical property requirements. b)

24、Condition B): steel ordered to make an identified part. 1.7 Zinc-coated steel sheet is available in several fabrication qualities. Commercial: intended for general fabrication purposes where sheet is used in the flat or for bending or moderate forming. Drawing: intended for fabricating parts where d

25、rawing or severe forming may be involved. Deep drawing-aluminium killed (non-aging): intended for fabricating parts where particularly severe drawing or forming may be involved or essential freedom form aging is required. Extra deep drawing (stabilized interstitial free): intended for applications r

26、equiring interstitial free steel (IF) which is non-aging and has maximum formability. 1.8 This International Standard does not cover steels designated as structural quality which are covered in ISO 49981. SANS 3575:2008This s tandard may only be used and printed by approved subscription and freemail

27、ing clients of the SABS .ISO 3575:2005(E) 2 ISO 2005 All rights reserved2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced

28、 document (including any amendments) applies. ISO 1460:1992, Metallic coatings Hot dip galvanized coatings on ferrous materials Gravimetric determination of the mass per unit area ISO 2178:1982, Non-magnetic coatings on magnetic substrates Measurement of coating thickness Magnetic method ISO 3497:19

29、90, Metallic coatings Measurement of coating thickness X-ray spectrometric methods ISO 6892:1998, Metallic materials Tensile testing at ambient temperature ISO 7438:1985, Metallic materials Bend test ISO 16160:2000, Continuously hot-rolled steel sheet products Dimensional and shape tolerances ISO 16

30、162:2000, Continuously cold-rolled steel sheet products Dimensional and shape tolerances ISO 16163:2000, Continuously hot-dipped coated steel sheet products Dimensional and shape tolerances 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 cont

31、inuous hot-dip zinc-coated steel sheet product obtained by hot-dip zinc coating cold-reduced sheet coils or hot-rolled descaled sheet coils on a continuous zinc-coating line to produce either zinc-coated coils or zinc-coated cut lengths 3.2 breakage allowance agreed upon level of acceptable die brea

32、kage not subject to claim 3.3 normal spangle coating formed as a result of unrestricted growth of zinc crystals during normal solidification NOTE This coating has a metallic lustre and is the type normally furnished for a wide variety of applications. It may be furnished S (normal coating, with skin

33、 pass) or N (normal coating, as coated); however, it may be variable in appearance and not suitable for decorative painting. 3.4 minimized spangle coating obtained by restricting normal spangle formation during the solidification of the zinc NOTE This product may have some lack of uniformity in surf

34、ace appearance within a coil or from coil to coil. 3.5 smooth finish smoothness produced by skin-passing the coated material in order to achieve an improved surface condition as compared with the normal as-coated product SANS 3575:2008This s tandard may only be used and printed by approved subscript

35、ion and freemailing clients of the SABS .ISO 3575:2005(E) ISO 2005 All rights reserved 33.6 zinc-iron alloy coating coating produced by processing the zinc-coated steel sheet so that the coating formed on the base metal is composed of zinc-iron alloys NOTE This product, designated ZF, is not spangle

36、d, is normally dull in appearance, and for some applications, may be suitable for immediate painting without further treatment, except normal cleaning. Zinc-iron alloy coatings may powder during severe forming. 3.7 skin pass light cold-rolling of the zinc-coated steel sheet NOTE The purpose of the s

37、kin pass is to produce a higher degree of surface smoothness and thereby improve the surface appearance. The skin pass also temporarily minimizes the occurrence of a surface condition known as stretcher strain (Luders Lines) or fluting during the fabrication of finished parts. The skin pass also con

38、trols and improves flatness. Some increase in hardness and loss of ductility will result from skin passing. 3.8 differential coating coating having a coating mass on one surface significantly different from the coating mass on the other surface 4 Requirements 4.1 Chemical composition The chemical co

39、mposition (heat analysis) shall not exceed the values given in Tables 1 and 2. On request, a report of the heat analysis shall be made to the purchaser. A verification analysis (product analysis) may be made by the purchaser to verify the specified analysis of the semi-finished or finished steel and

40、 shall take into consideration any normal heterogeneity. Non-killed steels, such as rimmed or capped, are not technologically suited for verification analysis. The product analysis tolerances are shown in Table 3. The processes used in making the steel and in manufacturing zinc-coated sheet are left

41、 to the discretion of the manufacturer. When requested, the purchaser shall be informed of the steelmaking process being used. On request, a report of the heat analysis shall be made to the purchaser. Table 1 Chemical composition (heat analysis), % Base-metal quality C Mn P S Ti Designation Name max

42、. max. max. max. max. 01 Commercial 0,15 0,60 0,05 0,05 02 Drawing 0,12 0,50 0,04 0,04 03 aDeep drawing 0,10 0,45 0,03 0,03 04 aDeep drawing special killed 0,08 0,45 0,03 0,03 05 aExtra deep drawing stabilized 0,02 0,25 0,02 0,02 0,15 aFor interstitial free steels only, the values of 0,15 % titanium

43、, and 0,10 % maximum for niobium and vanadium are acceptable to ensure that the carbon and nitrogen are fully stabilized. SANS 3575:2008This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 3575:2005(E) 4 ISO 2005 All rights reservedTable 2 Lim

44、its on additional chemical elements, % Cu aNi aCr a,bMo a,bNb cV c,dTi cElement max. max. max. max. max. max. max. Heat analysis 0,20 0,20 0,15 0,06 0,008 0,008 0,008 Product analysis 0,23 0,23 0,19 0,07 0,018 0,018 0,018 NOTE Each of the elements listed in this table shall be included in the report

45、 of the heat analysis. When the amount of copper, nickel, chromium or molybdenum present is less than 0,02 %, the analysis may be reported as 0,02 %. aThe sum of copper, nickel, chromium and molybdenum shall not exceed 0,50 % on the heat analysis. When one or more of these elements are specified, th

46、e sum does not apply, in which case, only the individual limits on the remaining elements apply. bThe sum of chromium and molybdenum shall not exceed 0,16 % on heat analysis. When one or more of these elements are specified, the sum does not apply, in which case, only the individual limits on the re

47、maining elements apply. cFor interstitial free steels only, the value of 0,15 % titanium, and 0,10 % maximum for niobium and vanadium are acceptable to ensure that the carbon and nitrogen are fully stabilized. dHeat analysis greater than 0,008 % may be supplied after agreement between the producer a

48、nd purchaser. Table 3 Product analysis tolerances, % Element Maximum of specified element Tolerance over maximum specifiedC 0,25 0,04 Mn 1,70 0,14 P 0,05 0,01 S 0,035 0,01 NOTE The above maximum tolerance is the allowable excess over the specified requirement and not the heat analysis. 4.2 Mechanica

49、l properties Zinc-coated sheet of designations 01, 02, 03, 04 and 05 are supplied under the following two ordering conditions: a) Ordering condition A). Steel when ordered to mechanical properties shall, at the time the steel is made available for shipment, satisfy the applicable requirements of Table 4. b) Ordering condition B). Steel when ordered to make an identified part shall be supplied with a commitment for satisfactory manufacturing performance within a proper breakage allowance, which shall be previously a