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1、 Reference number ISO 5952:2005(E) ISO 2005 INTERNATIONAL STANDARD ISO 5952 Third edition 2005-02-15 Continuously hot-rolled steel sheet of structural quality with improved atmospheric corrosion resistance Tles en acier de construction lamines chaud en continu rsistance amliore la corrosion atmosphr
2、ique Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 08:10:23 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5952:2005(E) PDF disclaimer This PDF f
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5、creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2005 All rights reserved. U
6、nless 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 below or ISOs member body in the country of the requester. IS
7、O 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 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=
8、NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 08:10:23 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5952:2005(E) ISO 2005 All rights reserved iii Contents Page Forewordiv 1 Scope1 2 Normative references .1 3 Terms and definitions.2 4 Surface charac
9、teristics.2 4.1 Surface condition2 4.2 Oiling2 5 Conditions of manufacture 3 5.1 Steelmaking.3 5.2 Chemical composition3 5.3 Chemical analysis.3 5.4 Weldability .4 5.5 Application.4 5.6 Mechanical properties4 5.7 Corrosion resistance4 6 Dimensional tolerances4 7 Tensile test sampling4 8 Tensile test
10、 requirements.4 9 Retests .5 9.1 Machining and flaws.5 9.2 Elongation6 9.3 Additional tests .6 10 Resubmission6 11 Workmanship 6 12 Inspection and acceptance6 13 Coil size6 14 Marking.7 15 Information to be supplied by the purchaser.7 Annex A (informative) Guidelines for estimating the atmospheric c
11、orrosion resistance of low- alloy steels.8 Annex B (informative) Additional information for the use of steel with improved atmospheric corrosion resistance.9 Bibliography .10 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Stand
12、ards 1/9972545001 Not for Resale, 04/20/2007 08:10:23 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5952:2005(E) iv ISO 2005 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (I
13、SO 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 organizations, gov
14、ernmental 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 the ISO/IEC
15、 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 % of the membe
16、r 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 5952 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee
17、SC 12, Continuous mill flat rolled products. This third edition cancels and replaces the second edition (ISO 5952:1998), which has been technically revised. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001
18、Not for Resale, 04/20/2007 08:10:23 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 5952:2005(E) ISO 2005 All rights reserved 1 Continuously hot-rolled steel sheet of structural quality with improved atmospheric corrosion resistance 1 Scope 1.1 Th
19、is International Standard applies to continuously hot-rolled steel sheet (see 3.2) of structural quality having improved atmospheric corrosion resistance, also known as weather-resistant structural steel. It is produced in the grades and classes listed in Tables 1 and 2. The product is intended for
20、applications where requirements are for mechanical properties and increased resistance to atmospheric corrosion. It is generally used in the delivered condition and is intended for bolted, riveted or welded structures. 1.2 This product is commonly produced in the range of thicknesses 1,6 mm up to an
21、d including 12,5 mm and widths of 600 mm and over, in coils and cut lengths. 1.3 Hot-rolled sheet less than 600 mm wide may be slit from wide sheet and will be considered as sheet. NOTE Hot-rolled sheet up to but not including 3 mm in thickness is commonly known as sheet. Hot-rolled sheet 3 mm and o
22、ver in thickness is commonly known as either “sheet” or “plate”. 1.4 This International Standard does not cover the following steel qualities: steels intended for boilers or pressure vessels, or steels designated as commercial quality or drawing qualities (see ISO 3573); steels produced on reversing
23、 mills and designated as improved atmospheric corrosion resistance (see ISO 4952); steels designated as structural quality (see ISO 4995), or high yield strength structural quality (see ISO 4996); steels designated as higher yield strength with improved formability (see ISO 5951). 2 Normative refere
24、nces 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. ISO 148:1983, Steel Charpy impact test (V-no
25、tch) ISO 6892:1998, Metallic materials Tensile testing at ambient temperature ISO 16160:2000, Continuously hot-rolled steel sheet products Dimensional and shape tolerances Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standard
26、s 1/9972545001 Not for Resale, 04/20/2007 08:10:23 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5952:2005(E) 2 ISO 2005 All rights reserved 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 improved atmospheric
27、corrosion resistance a characteristic achieved by intentional addition of a certain number of alloying elements such as P, Cu, Cr, Ni, etc.; providing a chemical composition which promotes the formation of a protective oxide layer on the product NOTE The degree of corrosion resistance is based on da
28、ta acceptable to the purchaser. 3.2 hot-rolled steel sheet a product obtained by rolling heated steel through a continuous-type wide strip mill to the required sheet thickness NOTE The product has a surface covered with oxide or scale resulting from the hot-rolling operation. 3.3 hot-rolled descaled
29、 steel sheet hot-rolled steel sheet from which oxide or scale has been removed by pickling in an acid solution or by mechanical means such as grit blasting NOTE Some change in properties may result from mechanical descaling. 3.4 mill edge a normal edge without any definite contour produced in hot ro
30、lling NOTE Untrimmed edges may contain some irregularities, such as cracked or torn edges or thin (feathered) edges. 3.5 sheared edge a normal edge obtained by shearing, slitting or trimming a mill edge product NOTE 1 Normal processing does not necessarily provide a definite positioning of the slitt
31、ing burr. NOTE 2 Material is normally supplied as described in 3.4 and 3.5. Other edges may be supplied as agreed upon. 4 Surface characteristics 4.1 Surface condition Oxide or scale in hot-rolled steel sheet is subject to variations in thickness, adherence and colour. Removal of the oxide or scale
32、by pickling or blast cleaning may disclose surface imperfections not readily visible prior to this operation. 4.2 Oiling As a deterrent to rusting, a coating of oil is usually applied to hot-rolled, descaled steel sheet, but sheet may be furnished unoiled, if required. The oil is not intended as a f
33、orming lubricant and shall be easily removable with degreasing chemicals. When requested, the manufacturer shall advise the purchaser which type of oil has been used. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9
34、972545001 Not for Resale, 04/20/2007 08:10:23 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5952:2005(E) ISO 2005 All rights reserved 3 5 Conditions of manufacture 5.1 Steelmaking Unless otherwise agreed upon, the processes used in making the steel and in manufacturin
35、g hot-rolled 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 composition 5.2.1 The chemical composition (heat analysis) shall conform to the values given in Table 1, unless otherwise agreed between
36、the interested parties. 5.2.2 When selecting the grade or chemical composition to be used, attention should be directed to the appropriate welding procedure to be followed (see 5.4). 5.3 Chemical analysis 5.3.1 Heat analysis: An analysis of each heat of steel shall be made by the manufacturer to det
37、ermine compliance with the requirements given in Table 1. When requested, at the time of ordering, this analysis shall be reported to the purchaser or his representative. Table 1 Chemical composition (heat analysis) (normal standard compositions, see 5.2) % Grade Class a Method b C Mn Si P S Cu Ni C
38、r Mo Zr HSA 235W B D NE CS 0,13 max. 0,20 to 0,60 0,100 to 0,40 0,040 max. 0,035 max. 0,25 to 0,55 0,65 max. 0,40 to 0,80 HSA 245W B D NE CS 0,18 max. 1,25 max. 015 to 0,65 0,035 max. 0,035 max. 0,30 to 0,50 0,05 to 0,30 0,45 to 0,75 c c HSA 355W1 A D NE CS 0,12 max. 1,00 max. 0,20 to 0,75 0,06 to 0
39、,15 0,035 max. 0,25 to 0,55 0,65, max. 0,30 to 1,25 HSA 355W2 C D NE CS 0,16 max. 0,50 to 1,50 0,50 max. 0,035 max. 0,035 max. 0,25 to 0,55 0,65 max. 0,40 to 0,80 0,30 max. 0,15 max. HSA 365W B D NE CS 0,18 max. 1,40 max. 0,15 to 0,65 0,035 max. 0,035 max. 0,30 to 0,50 0,05 to 0,30 0,45 to 0,75 c c
40、NOTE Each grade may contain one or more microalloying elements such as vanadium, titanium, niobium, etc. a Class A steels satisfy only moderate loading conditions. Class B steels are intended for use in welded structures or structural parts, subjected to normal loading conditions. Class C steels are
41、 to be used in cases where, owing to loading conditions, and the general design of the structure, some resistance to brittle fracture is necessary. Class D steels are to be used for structures or structural parts where, owing to loading conditions and the general design of the structure, a high resi
42、stance to brittle fracture is necessary. b NE non-rimming CS - aluminum killed (0,020 % minimum total aluminum) c Total content of Mo, Nb, Ti, V and Zr not to exceed 0,15 %. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standa
43、rds 1/9972545001 Not for Resale, 04/20/2007 08:10:23 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 5952:2005(E) 4 ISO 2005 All rights reserved 5.3.2 Product analysis A product analysis may be made by the purchaser to verify the specified analysis of the product and sh
44、all take into consideration any normal heterogeneity. For killed steels, the sampling method and deviation limits shall be agreed upon between the interested parties at the time of ordering. 5.4 Weldability This product is suitable for welding if appropriate welding conditions are selected. See the
45、recommendations given in IIS/IIW 382-71 as an example. 5.5 Application It is desirable that the specified product be identified for fabrication by name of the part or by intended application. Proper identification of the part may include visual examination, prints or description, or a combination of
46、 these. 5.6 Mechanical properties At the time that the steel is made available for shipment, the mechanical properties shall be as stated in Table 2 when they are determined on test pieces obtained according to the requirements of Clause 8. Any additional property requirements specified or required
47、are subject to agreement before ordering. 5.7 Corrosion resistance The resistance of these steels to atmospheric corrosion is due to the formation of a protective oxide layer. The formation of this protective layer depends not only on chemical composition, such as the distinctive differences between
48、 the analyses of the various grades, but also on a number of factors such as surrounding atmosphere, design, etc., over which the steel producer has no control. See Annexes A and B for information on estimating the corrosion resistance and cautions concerning the use of these steels. 6 Dimensional tolerances Dimensional tolerances applicable to hot-rolled steel sheet of structural quality with improved atmospheric corrosion resistance shall be as given in ISO 16160. 7 Tensile test sampling One representative sample