1、BS ISO 3575:2016Continuous hot-dip zinc-coated and zinc-iron alloy-coated carbon steel sheetof commercial and drawingqualitiesBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 3575:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementat
2、ion of ISO 3575:2016.It supersedes BS ISO 3575:2011 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/109, Coated and Uncoated Flat Products to be Usedfor Cold Forming.A list of organizations represented on this committee can beobtained on request to
3、its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 87939 5ICS 77.140.50Compliance with a British Standard
4、cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 3575:2016 ISO 2016Continuous hot-dip zinc-coated and z
5、inc-iron alloy-coated carbon steel sheet of commercial and drawing qualitiesTles en acier au carbone galvanises en continu par immersion chaud, de qualit commerciale et pour emboutissageINTERNATIONAL STANDARDISO3575Fifth edition2016-07-15Reference numberISO 3575:2016(E)BS ISO 3575:2016ISO 3575:2016(
6、E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posti
7、ng on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22
8、749 09 47copyrightiso.orgwww.iso.orgBS ISO 3575:2016ISO 3575:2016(E)Foreword v1 Scope . 12 Normative references 13 Terms and definitions . 14 Dimensions . 35 Conditions of manufacture 35.1 Steelmaking . 35.2 Chemical composition 35.3 Chemical analysis 35.3.1 Heat analysis 35.3.2 Product analysis . 4
9、5.4 Mechanical properties 55.4.1 Ordering conditions 55.4.2 Fabrication qualities . 55.4.3 Interstitial free steel 55.5 Coating . 75.5.1 Coating mass 75.5.2 Coating adherence 75.6 Weldability 85.7 Painting 85.8 Surface treatment . 85.8.1 Mill passivation . 85.8.2 Mill phosphating 85.8.3 Oiling 95.9
10、Coated coil joining 95.10 Dimensional and shape tolerances 96 Sampling 96.1 Tensile test 96.2 Coating tests 96.2.1 Coating mass 96.2.2 Triple-spot test 96.2.3 Single-spot test 96.2.4 Coating adherence .107 Test methods 107.1 Tensile test . 107.2 Coating properties 107.2.1 Coating mass.107.2.2 Coatin
11、g adherence .108 Designation system .108.1 General 108.2 Coating designation . 108.3 Coating mass 108.4 Coating finish condition . 118.5 Surface treatment 118.6 Base-metal quality designation . 118.7 Examples . 119 Retests 129.1 Machining and flaws 129.2 Elongation 129.3 Additional tests 1210 Resubm
12、ission 12 ISO 2016 All rights reserved iiiContents PageBS ISO 3575:2016ISO 3575:2016(E)11 Workmanship .1312 Inspection and acceptance 1313 Coil size 1314 Marking .1315 Information to be supplied by the purchaser14Annex A (normative) Orders requiring base-metal thickness .15Bibliography .16iv ISO 201
13、6 All rights reservedBS ISO 3575:2016ISO 3575:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Ea
14、ch 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, also take part in the work. ISO collaborates closely with the Internatio
15、nal Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different
16、 types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not
17、 be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is info
18、rmation given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Ba
19、rriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 17, Steel, Subcommittee SC 12, Continuous mill flat rolled products.This fifth edition cancels and replaces the fourth edition (ISO 3575:2011), which has been technically
20、revised. ISO 2016 All rights reserved vBS ISO 3575:2016BS ISO 3575:2016Continuous hot-dip zinc-coated and zinc-iron alloy-coated carbon steel sheet of commercial and drawing qualities1 ScopeThis document is applicable to the requirements for steel sheet, in coils and cut lengths, metallic-coated by
21、the continuous hot-dip process, with zinc and zinc-iron alloy coatings.The product is intended for applications requiring corrosion resistance, formability and paintability.The steel sheet is produced in a number of designations, coating masses, surface treatments and coating conditions designed to
22、be compatible with differing application requirements.This document does not cover steels designated as structural quality, which are covered in ISO 49981.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirement
23、s of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1460, Metallic coatings Hot dip galvanized coatings on ferrous materials Gravimetric determination of the mass per un
24、it areaISO 2178, Non-magnetic coatings on magnetic substrates Measurement of coating thickness Magnetic methodISO 3497, Metallic coatings Measurement of coating thickness X-ray spectrometric methodsISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperatureISO 7438, Met
25、allic materials Bend testISO 16163, Continuously hot-dipped coated steel sheet products Dimensional and shape tolerances3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the
26、following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp3.1commercialintended for general fabricating purposes where sheet is used in the flat condition, or for bending or moderate forming3.2drawingintended for p
27、arts where drawing or severe forming may be involvedINTERNATIONAL STANDARD ISO 3575:2016(E) ISO 2016 All rights reserved 1BS ISO 3575:2016ISO 3575:2016(E)3.3deep drawingintended for parts where severe forming or severe drawing may be involved3.4deep drawing aluminium killedintended for fabricating p
28、arts where particularly severe drawing or forming may be involved3.5extra deep drawing stabilizedintended for applications where maximum formability is required by applying interstitial free steel3.6interstitial free steelIFextra-low-carbon steel in which all interstitial elements are stabilized wit
29、h titanium and/or equivalent elementsNote 1 to entry: Interstitial free steel is sometimes referred to as stabilized steel.3.7ageingchange in steel properties with the passage of timeNote 1 to entry: Ageing can result in a change in yield strength and a corresponding decrease in ductility during sto
30、rage. Ageing always has a negative effect on formability. The redevelopment of a definite yield point phenomenon as a result of ageing can result in a renewed susceptibility to surface imperfections, such as stretcher strain marks (Lders Lines) and fluting when the steel is formed. To avoid these ad
31、verse outcomes, it is essential that the period between final processing at the producing mill and fabrication be kept to a minimum. Rotation of stock, by using the oldest material first, is important. Effective roller levelling immediately prior to fabrication can achieve reasonable freedom from st
32、retcher strain marks.3.8continuous hot-dip zinc-coated steel sheetsteel sheet product in coils or cut lengths manufactured on a continuous coating line with a hot-dip zinc coating on base metal of cold-reduced or hot-rolled descaled steel3.9continuous hot-dip zinc-iron alloy coated steel sheetsteel
33、sheet product obtained by processing continuous hot-dip zinc-coated steel sheet to form a zinc-iron alloy coatingNote 1 to entry: This product, designated ZF, is not spangled, is normally dull in appearance and, for some applications, can be suitable for immediate painting without further treatment,
34、 except normal cleaning. Zinc-iron alloy coatings can powder during severe forming.3.10differential coatingcoating deliberately produced to have a different coating mass on each surface3.11breakage allowanceagreed upon level of acceptable die breakage not subject to claim3.12normal spanglecoating fo
35、rmed as a result of unrestricted growth of zinc crystals during normal solidificationNote 1 to entry: This coating has a metallic lustre and is the type normally furnished for a wide variety of applications. It can be furnished S (normal coating, with skin pass) or N (normal coating, as coated); how
36、ever, it can be variable in appearance and not suitable for decorative painting.2 ISO 2016 All rights reservedBS ISO 3575:2016ISO 3575:2016(E)3.13smooth finishsmoothness produced by skin-passing the coated material in order to achieve an improved surface condition as compared with the normal as-coat
37、ed product3.14skin passlight cold rolling of the productNote 1 to entry: The purpose of the skin passing is one or more of the following: to minimize the appearance of coil breaks, stretcher strains and fluting; to control the shape; to obtain the required surface finish.Note 2 to entry: Some increa
38、se in hardness and some loss in ductility will result from skin passing.3.15lotup to a specified quantity of steel sheet of the same designation rolled to the same thickness and coating condition3.16coating masstotal amount of coating on both sides of the sheet, expressed in grams per square metre4
39、Dimensions4.1 Zinc-coated and zinc-iron alloy-coated steel sheet 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 and zinc-iron alloy-coated steel sheet less than 600 mm wide, slit from wide sheet, will be
40、 considered as sheet.4.2 The thickness of zinc-coated and zinc-iron alloy-coated steel sheet 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
41、that the purchaser does not indicate any preference, the thickness as a combination of the base metal and coating will be provided. Annex A describes the requirements for specifying the thickness of the base metal alone.5 Conditions of manufacture5.1 SteelmakingUnless otherwise agreed by the interes
42、ted parties, the processes used in making the steel and in manufacturing zinc-coated and zinc-iron alloy-coated steel sheet are left to the discretion of the manufacturer. On request, the purchaser shall be informed of the steelmaking process being used.5.2 Chemical compositionThe chemical compositi
43、on (heat analysis) shall conform to the requirements given in Tables 1 and 2.5.3 Chemical analysis5.3.1 Heat analysisAn analysis of each heat shall be made by the manufacturer in order to determine compliance with the requirements given in Tables 1 and 2. On request, a report of the heat analysis sh
44、all be made available to the purchaser or the purchasers representative. Each of the elements listed in Tables 1 and 2 shall be included in the report 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 “ 2,0 mm
45、, the r value is reduced by 0,2.fr can also be written as r-bar and n can also be written as n-bar.gr and n values may be modified or excluded from this specification, by agreement between the producer and the purchaser.h1 MPa = 1 N/mm2.iMay be used for material over 3 mm in thickness.jThis value ap
46、plies to skin-passed products only.6 ISO 2016 All rights reserved8 days1 month6 months6 monthsBS ISO 3575:2016ISO 3575:2016(E)5.5 Coating5.5.1 Coating massThe coating mass limits shall conform to the limits for the designations shown in Table 5. The interested parties shall agree upon the coating ma
47、ss of differentially coated products. If a maximum coating mass is required, the manufacturer shall be notified at the time of ordering.Table 5 Coating mass (total both sides)Coating designation(Z zinc; ZF zinc-iron alloy)Minimum check limitTriple-spot test Single-spot testg/m2(of sheet) g/m2(of she
48、et)Z001 No minimum aNo minimum aZ100 100 85Z180 180 150Z200 200 170Z275 275 235Z350 350 300Z450 450 385Z600 600 510Z700 700 595ZF001 No minimum aNo minimum aZF100 100 85ZF180 180 150NOTE 1 Because of the many variables and changing conditions that are characteristic of continuous zinc coating, the c
49、oating mass is not always evenly divided between the two surfaces of zinc-coated and zinc-alloy coated sheet; neither is the coating evenly distributed from edge to edge. However, it can normally be expected that not less than 40 % of the single-spot check limit will be found on either surface.NOTE 2 The coating thickness may be estimated from the coating mass by using the following relationship: 100 g/m2 total mass both sides = 0,014 mm total thickness both sides.a “No minimum” means that there are no established mini
