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1、 Reference number ISO 3575:2005(E) ISO 2005 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 th
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4、rm the Central Secretariat 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 e
5、ither ISO at the address below 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 reserved ISO 3575:2005(E) IS
6、O 2005 All rights reserved iii Foreword ISO (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. Each member body intere
7、sted 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 International Electrotechnical
8、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 committees is to prepare International Standards. Draft International Standards adopted by the tec
9、hnical 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 possibility that some of the elements of this document may be the subject of patent rights. ISO
10、 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 edition cancels and replaces the second edition (ISO 3575:1996), which has been technicall
11、y revised. INTERNATIONAL STANDARD ISO 3575:2005(E) ISO 2005 All rights reserved 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 coated by the continuous h
12、ot-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 is produced in thicknesses
13、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 be specified as a combinat
14、ion 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 and coating will be provid
15、ed. 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) Condition B): steel ordered to
16、 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 drawing or severe forming may b
17、e 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 requiring interstitial free ste
18、el (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. ISO 3575:2005(E) 2 ISO 2005 All rights reserved 2 Normative references The following referenced documents are indispensable
19、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. ISO 1460:1992, Metallic coatings Hot dip galvanized coatings on ferrous materials Gravimetric determin
20、ation 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 thickness X-ray spectrometric methods ISO 6892:1998, Metallic materials Tensile testing at ambient temp
21、erature 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 sheet products Dimensional and shape tolerances ISO 16163:2000, Continuously hot-dipped coated steel sheet
22、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 product obtained by hot-dip zinc coating cold-reduced sheet coils or hot-rolled descaled sheet coils on a con
23、tinuous 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 coating formed as a result of unrestricted growth of zinc crystals during normal solidification NOTE Th
24、is 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); however, it may be variable in appearance and not suitable for decorative painting. 3.4 minimized spangle c
25、oating 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 coil. 3.5 smooth finish smoothness produced by skin-passing the coated material in order to achieve an
26、improved surface condition as compared with the normal as-coated product -,-,- ISO 3575:2005(E) ISO 2005 All rights reserved 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
27、 product, designated ZF, is not spangled, 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-coate
28、d steel sheet NOTE The purpose of the skin 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
29、 finished parts. The skin pass also controls 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
30、.1 Chemical composition The chemical composition (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
31、the semi-finished or finished steel and 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 m
32、anufacturing zinc-coated sheet are left 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 q
33、uality 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 0,04 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
34、 steels only, the values of 0,15 % titanium, and 0,10 % maximum for niobium and vanadium are acceptable to ensure that the carbon and nitrogen are fully stabilized. ISO 3575:2005(E) 4 ISO 2005 All rights reserved Table 2 Limits on additional chemical elements, % Cu a Ni a Cr a, b Mo a, b Nb c V c, d
35、 Ti c Element 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 of the heat analysis. When the amount of copper, nickel, chromium
36、 or molybdenum present is less than 0,02 %, the 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 o
37、n the remaining elements apply. b The 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 remaining elements apply. c For interstitial free steels only, the
38、 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. d Heat analysis greater than 0,008 % may be supplied after agreement between the producer and purchaser. Table 3 Product analysis tolerances, % Element M
39、aximum of specified element Tolerance over maximum 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
40、 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
41、 identified part shall be supplied with a commitment 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 fr
42、om stretcher strain or fluting) shall be specified. 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. -,-,- ISO 3
43、575:2005(E) ISO 2005 All rights reserved 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 drawing special killed 22
44、0 410 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 t
45、o 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 performance criteria 4.2, the typical mechanical properties presented here are non-mandatory. For products specified according to mechanical properties, the purchaser ma
46、y negotiate with the supplier if a specific range, or a more restrictive range, is required for the application, therefore, by agreement, these values may be specified. NOTE 3 These typical mechanical properties apply to the full range of steel sheet thicknesses. The yield tends to increase and some
47、 of the formability aspects tend to decrease as the sheet thickness decreases. a All qualities are available with a minimized spangle zinc coating. b The yield values apply to 0,2 % proof stress if the yield point is not pronounced, otherwise to the lower yield point (ReL). c Minimum tensile strengt
48、h for qualities 02, 03, 04 and 05 would normally be expected to be 270 N/mm2. All tensile strength values are determined to the nearest 10 N/mm2. d For material up to and including 0,6 mm in thickness, the elongation values in the table shall be reduced by 2. e 1 N/mm2 = 1 MPa. f May be used for mat
49、erial over 3 mm in thickness. g This value applies to skin-passed products only. 4.3 Coating 4.3.1 Coating mass The coating mass limits shall conform to the limits for the designations shown in Table 5. The coating mass is the total amount of coating on both sides of the sheet, expressed in grams per square metre. The coating mass of differentially coated product shall be agreed upon by the interested parties. I