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1、BRITISH STANDARD BS ISO 5952:2005 Continuously hot-rolled steel sheet of structural quality with improved atmospheric corrosion resistance ICS 77.140.50 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 5952:2005 This British Standard
2、 was published under the authority of the Standards Policy and Strategy Committee on 10 March 2005 BSI 10 March 2005 ISBN 0 580 45600 5 National foreword This British Standard reproduces verbatim ISO 5952:2005 and implements it as the UK national standard. The UK participation in its preparation was
3、 entrusted to Technical 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
4、this document may 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
5、contract. Users are 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 proposa
6、ls for change, and keep the 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 to iv, pages 1 to 10, an inside back cover and a back
7、cover. 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 07:26:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 5952:2005(
8、E) OSI 5002 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 atmosphrique BS ISO 5952:2005 Licensed C
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14、ez dna ii ISO 5002 Allr ithgsr esedevr BS ISO 5952:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:2595 O5002(E) I SO 5002 All irthgs ersedevr iii Contents Page Forewordiv 1 Scope1 2 Normative references .1 3 Terms and definitions.2
15、4 Surface characteristics.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 sampling
16、4 8 Tensile test 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 t
17、he atmospheric corrosion resistance of low- alloy steels.8 Annex B (informative) Additional information for the use of steel with improved atmospheric corrosion resistance.9 Bibliography .10 BS ISO 5952:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:56 GMT+00:00 2006, Uncontrolled
18、 Copy, (c) BSI IS:2595 O5002(E) iv I SO 5002 All irthgs ersedevr 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 c
19、ommittees. 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, also take part in the work. ISO collaborates closely with t
20、he 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 committees is to prepare International Standards. Draft Internat
21、ional 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 possibility that some of the elements of this document may be
22、 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 SC 12, Continuous mill flat rolled products. This third edition cancels and replaces the second edition (ISO 595
23、2:1998), which has been technically revised. BS ISO 5952:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTENRATIONAL TSANDADR IS:2595 O5002(E) I SO 5002 All irthgs ersedevr 1 Continuously hot-rolled steel sheet of structural quality w
24、ith improved atmospheric corrosion resistance 1 Scope 1.1 This 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 cl
25、asses listed in Tables 1 and 2. The product is intended for 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 c
26、ommonly produced in the range of thicknesses 1,6 mm up to and 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 thick
27、ness is commonly known as sheet. Hot-rolled sheet 3 mm and over 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 dr
28、awing qualities (see ISO 3573); steels produced on reversing 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
29、with improved formability (see ISO 5951). 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 amend
30、ments) applies. ISO 148:1983, Steel Charpy impact test (V-notch) ISO 6892:1998, Metallic materials Tensile testing at ambient temperature ISO 16160:2000, Continuously hot-rolled steel sheet products Dimensional and shape tolerances BS ISO 5952:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov
31、 27 07:26:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:2595 O5002(E) 2 I SO 5002 All irthgs ersedevr 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 improved atmospheric corrosion resistance a characteristic achieved by intentional additi
32、on 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 data acceptable to the purchaser. 3.2 hot-rolled steel sheet a product
33、 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 steel sheet hot-rolled steel sheet from which oxide or scale has be
34、en 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 rolling NOTE Untrimmed edges may contain some irregularities, such as
35、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 slitting burr. NOTE 2 Material is normally supplied as described in 3.4 a
36、nd 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 by pickling or blast cleaning may disclose surface imperfections not
37、 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 forming lubricant and shall be easily removable with degreasing chemi
38、cals. When requested, the manufacturer shall advise the purchaser which type of oil has been used. BS ISO 5952:2005 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:2595 O5002(E) I SO 5002 All irthgs ersedevr 3 5 Conditions of manufacture
39、5.1 Steelmaking Unless otherwise agreed upon, the processes used in making the steel and in manufacturing 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 co
40、mposition (heat analysis) shall conform to the values given in Table 1, unless otherwise agreed between 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
41、analysis 5.3.1 Heat analysis: An analysis of each heat of steel shall be made by the manufacturer to determine 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 composit
42、ion (heat analysis) (normal standard compositions, see 5.2) % Grade Class a Method b C Mn Si P S Cu Ni Cr 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
43、,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 0,15 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
44、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 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
45、use in welded structures or structural parts, subjected to normal loading conditions. Class C steels are 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
46、structural parts where, owing to loading conditions and the general design of the structure, a high resistance 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 %. BS ISO 5952:2005 Licen
47、sed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:26:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS:2595 O5002(E) 4 I SO 5002 All irthgs ersedevr 5.3.2 Product analysis A product analysis may be made by the purchaser to verify the specified analysis of the product and shall take into considerat
48、ion 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 recommendations given in
49、 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 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
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