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1、BRITISH STANDARD BS ISO 3575:2005 Continuous hot-dip zinc-coated carbon steel sheet of commercial and drawing qualities ICS 77.140.50 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 3575:2005 This British Standard was published unde
2、r the authority of the Standards Policy and Strategy Committee on 26 August2005 BSI 26 August 2005 ISBN 0 580 46469 5 National foreword This British Standard reproduces verbatim ISO 3575:2005 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Tech
3、nical Committee ISE/10, Flat rolled steels products, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may
4、be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users ar
5、e responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and
6、 keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 14, an inside back cover and a back cover.
7、 The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 3575:2005(E) INT
8、ERNATIONAL STANDARD ISO 3575 Third edition 2005-05-15 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 BS ISO 3575:2005 Licensed Copy: sheffieldun sheff
9、ieldun, na, Mon Nov 27 07:26:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standar
10、ds bodies (ISO member bodies). The work of preparing International 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 organi
11、zations, governmental and non-governmental, in liaison with ISO, also 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
12、 the ISO/IEC Directives, Part 2. The main task of technical committees 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 %
13、of the member bodies casting a vote. Attention is drawn to the possibility 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, S
14、ubcommittee SC 12, Continuous mill flat rolled products. This third edition cancels and replaces the second edition (ISO 3575:1996), which has been technically revised. BS ISO 3575:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank L
15、icensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Continuous 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 qualities
16、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 sheet i
17、s 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 may
18、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 metal
19、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) Cond
20、ition 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 drawi
21、ng 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 requi
22、ring 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 4998 1. BS ISO 3575:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:28 GMT+00:00 2006, U
23、ncontrolled Copy, (c) BSI 2 2 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 document (including any amendments) applies
24、. 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 3497:1990, Metallic coatings Measurement of coating
25、 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 16162:2000, Continuously cold-rolled steel she
26、et 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 continuous hot-dip zinc-coated steel sheet produ
27、ct 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 breakage not subject to claim 3.3 normal spangle
28、 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 pass) or N (normal coating, as coated); how
29、ever, 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 surface appearance within a coil or from coil to
30、 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 BS ISO 3575:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
31、 3 3.6 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 spangled, is normally dull in appearance, and for some applications, may be suitable for imm
32、ediate 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 skin pass is to produce a higher degree of surface smoothness and thereby improve the
33、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 controls and improves flatness. Some increase in hardness and loss of ductility will res
34、ult 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 composition (heat analysis) shall not exceed the values given in Tables 1 and 2. On req
35、uest, 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 shall take into consideration any normal heterogeneity. Non-killed steels, such as r
36、immed 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 to the discretion of the manufacturer. When requested, the purchaser shall be inform
37、ed 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. max. max. max. max. 01 Commercial 0,15 0,60 0,05 0,05 02 Drawing 0,12 0,50 0,04 0,0
38、4 03 a Deep drawing 0,10 0,45 0,03 0,03 04 a Deep drawing special killed 0,08 0,45 0,03 0,03 05 a Extra deep drawing stabilized 0,02 0,25 0,02 0,02 0,15 a For interstitial free steels only, the values of 0,15 % titanium, and 0,10 % maximum for niobium and vanadium are acceptable to ensure that the c
39、arbon and nitrogen are fully stabilized. BS ISO 3575:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 Table 2 Limits on additional chemical elements, % Cu a Ni a Cr a, b Mo a, b Nb c V c, d Ti c Element max. max. max. max. max. max. ma
40、x. 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 of the heat analysis. When the amount of copper, nickel, chromium or molybdenum present is less than 0,02 %, th
41、e analysis may be reported as 0,02 %. a The 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, the sum does not apply, in which case, only the individual limits on the remaining elements apply. b The sum of c
42、hromium 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 remaining elements apply. c For interstitial free steels only, the value of 0,15 % titanium, and 0,10 % maximum
43、for niobium and vanadium are acceptable to ensure that the carbon and nitrogen are fully stabilized. d Heat analysis greater than 0,008 % may be supplied after agreement between the producer and purchaser. Table 3 Product analysis tolerances, % Element Maximum of specified element Tolerance over max
44、imum specified C 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 Mechanical properties Zinc-coated sheet of designations 01, 02, 03, 04 and 05 are supplied under the following two o
45、rdering 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 comm
46、itment for satisfactory manufacturing performance within a proper breakage allowance, which shall be previously agreed upon by the interested parties. In these cases, the part name, the details of fabrication, and special requirements (such as freedom from stretcher strain or fluting) shall be speci
47、fied. NOTE Prolonged storage of the sheet can cause a change in mechanical properties (increase in hardness and decrease in elongation), leading to a decrease in drawability. To minimize this effect, quality 03, 04 and 05 should be specified. BS ISO 3575:2005 Licensed Copy: sheffieldun sheffieldun,
48、na, Mon Nov 27 07:26:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 Table 4 Mechanical properties Base-metal quality a Re max. b N/mm2 e Rm max. c N/mm2 A min d Designation Name Lo = 80 mm Lo = 50 mm Lo = 5,65 So f 01 Commercial 02 Drawing 300 g 430 24 23 22 03 Deep drawing 260 410 26 25 24 04 Deep
49、 drawing special killed 220 410 29 28 27 05 Extra deep drawing stabilized 200 350 37 36 35 Re = yield stress Rm = tensile strength A = percent elongation after fracture Lo = gauge length on test piece So = original cross-sectional area of gauge length NOTE 1 Time period from date of shipment for values stated in this table to be applicable. Designation Time period 01 02 8 days 03 1 month 04 6 months 05 6 months NOTE 2 For products produced according to perfor