1、BS ISO 13976:2016Hot-rolled steel sheet in coilsof structural quality and heavythicknessBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 13976:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 13976:2016. Itsupersedes B
2、S ISO 13976:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/109, Coated and Uncoated Flat Products to be Usedfor Cold Forming.A list of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 its secretary.This publication does
3、 not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 87940 1ICS 77.140.50Compliance with a British Standard cannot confer immunity fromlegal ob
4、ligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2016.Amendments issued since publicationDate Text affectedBS ISO 13976:2016 ISO 2016Hot-rolled steel sheet in coils of structural quality and heavy thicknessTles fortes en aci
5、er de construction lamines chaud en bobinesINTERNATIONAL STANDARDISO13976Third edition2016-08-15Reference numberISO 13976:2016(E)BS ISO 13976:2016ISO 13976:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise speci
6、fied, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or IS
7、Os 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 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 13976:2016ISO 13976:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions
8、 . 14 Dimensions . 25 Conditions of manufacture 25.1 Steelmaking . 25.2 Chemical composition 25.3 Chemical analysis 35.3.1 Heat analysis 35.3.2 Product analysis . 35.4 Mechanical properties 45.5 Application . 45.6 Weldability 45.7 Surface condition 45.8 Oiling 45.9 Dimensional and shape tolerances 4
9、6 Sampling Tensile test 67 Test methods . 67.1 Tensile test 67.2 Impact test 68 Retests . 78.1 Machining and flaws. 78.2 Elongation . 78.3 Additional tests . 79 Resubmission . 710 Workmanship 711 Inspection and acceptance . 712 Coil size . 713 Marking 814 Information to be supplied by the purchaser.
10、 8Bibliography 9 ISO 2016 All rights reserved iiiContents PageBS ISO 13976:2016ISO 13976:2016(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 carri
11、ed 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, governmental and non-governmental, in liaison with ISO, also take part in the work. I
12、SO collaborates closely with the International 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
13、 approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directivesAttention is drawn to the possibility that some of the elements of this document may be the su
14、bject of patent rights. ISO shall not 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. www.iso.org/patentsAny trade nam
15、e used in this document is information 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)
16、 principles in the Technical Barriers to Trade (TBT), see the following URL: http:/www.iso.org/iso/foreword.htmlThe committee responsible for this document is ISO/TC 17, Steel, Subcommittee SC 12, Continuous mill flat rolled products.This third edition cancels and replaces the second edition (ISO 13
17、976:2005), which has been technically revised.iv ISO 2016 All rights reservedBS ISO 13976:2016INTERNATIONAL STANDARD ISO 13976:2016(E)Hot-rolled steel sheet in coils of structural quality and heavy thickness1 ScopeThis document applies to hot-rolled carbon/manganese steel sheet in coils of structura
18、l quality without the use of microalloying elements. It is generally used in the delivered condition and is intended for bolted, riveted or welded structures. The product is produced on a wide sheet mill.The product is intended for structural purposes where particular mechanical properties are requi
19、red.The steel sheet is produced in a number of grade designations designed to be compatible with differing application requirements.This document does not cover steels intended for boilers or pressure vessels, or steels designated as commercial quality or drawing qualities, or steels rolled to cold-
20、reduced products, or steels designated as weathering steels, having increased atmospheric corrosion resistance, or those products rolled on a plate mill.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements
21、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 148-1, Metallic materials Charpy pendulum impact test Part 1: Test methodISO 6892-1, Metallic materials Tensile testing
22、 Part 1: Method of test at room temperature3 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 following addresses: IEC Electropedia: available at http:/www.electropedia.or
23、g/ ISO Online browsing platform: available at http:/www.iso.org/obp3.1microalloying elementselements such as niobium, vanadium, titanium, etc., added singly or in combination to obtain higher strength levels combined with better formability, weldability and toughness as compared with non-alloyed ste
24、el produced to equivalent strength levels3.2hot-rolled steel sheet in coilssteel sheet in coil form manufactured through hot-rolling process where the material was heated before rolling to achieve the required sheet thickness and tolerancesNote 1 to entry: The product has a surface covered with oxid
25、e or scale resulting from the hot-rolling operation. ISO 2016 All rights reserved 1BS ISO 13976:2016ISO 13976:2016(E)3.3hot-rolled descaled steel sheet in coilshot-rolled steel sheet from the surface of which oxide or scale has been removed, commonly by pickling in an acid solutionNote 1 to entry: D
26、escaling can also be performed by mechanical means such as grit blasting. Some increase in hardness and some loss of ductility can result from descaling.Note 2 to entry: This product is normally supplied oiled.3.4mill edgenormal edge produced without any definite contour produced in hot-rollingNote
27、1 to entry: Mill edges can contain some irregularities such as cracked or torn edges on thin (feathered) edges.3.5sheared edgenormal edge obtained by shearing, slitting or trimming a mill edge productNote 1 to entry: Normal processing does not necessarily provide a definite positioning of the slitti
28、ng burr.3.6lot50 t or less of steel sheet of the same grade rolled to the same thickness and condition3.7edge camberedge camber is the greatest deviation of a side from a straight line, the measurement being taken on the concave side with a straight edge4 DimensionsHot-rolled steel sheet in coils of
29、 structural quality and heavy thickness is produced in the range of thicknesses greater than 6 mm to 25 mm, and widths of 600 mm and over, in coils.5 Conditions of manufacture5.1 SteelmakingUnless otherwise agreed upon by the interested parties, the processes used in making the steel and in manufact
30、uring 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 compositionThe chemical composition (heat analysis) shall conform to the requirements given in Tables 1 and 2.2 ISO 2016 All rights re
31、servedBS ISO 13976:2016ISO 13976:2016(E)Table 1 Chemical composition (heat analysis)Mass fractions in percentGradeCmax.Mnmax.Pmax.Smax.Simax.Nmax.HR185 0,16 1,5 0,030 0,035 0,40 0,015HR235 0,18 1,5 0,030 0,035 0,40 0,015HR275 0,18 1,5 0,030 0,035 0,40 0,015HR295 0,21 1,5 0,030 0,035 0,55 0,015HR325
32、0,18 1,6 0,030 0,035 0,55 0,015HR355 0,22 1,5 0,030 0,035 0,55 0,015Table 2 Limits on additional chemical elementsMass fractions in percentElementCuamax.Niamax.Crabmax.Moabmax.Nbmax.Vcmax.Timax.Heat analysis 0,20 0,20 0,15 0,06 0,008 0,008 c0,008Product analysis 0,23 0,23 0,19 0,07 0,018 0,018 0,018
33、aThe sum of copper, nickel, chromium and molybdenum shall not exceed 0,50 % on the heat analysis. When one or more of these elements is specified, the sum does not apply, in which case only the individual limits on the remaining elements will apply.bThe sum of chromium and molybdenum shall not excee
34、d 0,16 % on heat analysis. When one or more of these elements is specified, the sum does not apply, in which case, only the individual limits on the remaining elements will apply.cWhere residual V levels greater than 0,008 % occur due to high levels of V in natural ores, such material may be supplie
35、d after agreement between the manufacturer and purchaser.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 shall be made availabl
36、e 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 “ 0,15 to 0,22 0,04Mn 1,15 t
37、o 1,6 0,05P 0,030 0,010S 0,035 0,010Si 0,40 to 0,55 0,05N 0,015 0,005NOTE The above maximum tolerance is the allowable excess over the specified requirement and not the heat analysis. For example: for Grade HR295, the following product analysis values are within these tolerances: C 0,25 %, Mn 1,55 %
38、, P 0,040 %, S 0,045 %, Si 0,60 %, N 0,020 %.5.4 Mechanical propertiesAt the time that the steel is made available for shipment, the mechanical properties shall be as stated in Table 4, when they are determined on test pieces obtained in accordance with the requirements in Clause 7.5.5 ApplicationIt
39、 is desirable that the specified product be identified for fabrication by the name of the part or by the intended application.Proper identification of the part may include visual examination, prints or description, or a combination of these.5.6 WeldabilityThis product is normally suitable for weldin
40、g when appropriate welding conditions are selected. For non-descaled steel, it may be necessary to remove the scale or oxide depending upon the welding method.NOTE When the mass fraction of carbon exceeds 0,15 %, spot welding becomes increasingly difficult.5.7 Surface conditionDesignation AR describ
41、es the as-rolled condition. Oxide or scale on 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 readily visible prior to this operation.5.8 OilingDesignation DO descri
42、bes the descaled and oiled condition. As a deterrent to rusting, a coating of oil is usually applied to hot-rolled descaled steel sheet, but sheet may be furnished not oiled if required. The oil is not intended as a drawing or forming lubricant and shall be easily removable with degreasing chemicals
43、. On request, the manufacturer shall advise the purchaser which type of oil has been used. Hot-rolled descaled steel sheet may be ordered not oiled, if required, in which case the supplier has limited responsibility if oxidation occurs.NOTE If AR and DO are omitted, it means that the delivery will b
44、e as-rolled.5.9 Dimensional and shape tolerances5.9.1 Dimensional and shape tolerances applicable to hot-rolled steel sheet in coils of structural quality heavy thickness shall be as specified in Tables 5 and 6. These tolerances also apply to descaled material.4 ISO 2016 All rights reservedBS ISO 13
45、976:2016ISO 13976:2016(E)5.9.2 Edge camber shall not exceed 25 mm in any 5 000 mm of length (see Figure 1).Table 4 Mechanical propertiesAbmin, %GradeReamin.MPacRmmin.MPacLSoo= 5,65 Lo= 50 mmfor sheet thickness6 1 800 0,35 0,40 0,43 0,48 0,50w = width;e = thickness of steel sheet, in millimetres;NOTE
46、 The values specified do not apply to the uncropped ends for a length, l, of a mill edge coil. The length, l, would be calculated using the following formula:le=90metresprovided that the result was not greater than 20 m inclusive of both ends.aThickness is measured at any point on the sheet not less
47、 than 40 mm from a side edge for mill edge material and not less than 25 mm from the edge for sheared edge material. ISO 2016 All rights reserved 5BS ISO 13976:2016ISO 13976:2016(E)Table 6 Width tolerances for heavy thickness hot-rolled sheet in coilsDimensions and tolerances in millimetresSpecified
48、 widths Mill edges Sheared edges 600 1 800 +50 0 +10 0w = widthKey1 edge camber2 side edge (concave side)3 straight edgeFigure 1 Measurement of edge camber6 Sampling Tensile testOne representative transverse sample from each 50 t or less for shipment shall be taken for the tensile test to verify con
49、formance to the requirements of Table 4.7 Test methods7.1 Tensile testThe tensile test shall be conducted in accordance with the methods specified in ISO 6892-1. Transverse test pieces shall be taken midway between the centre and the edge of the as-rolled sheet.7.2 Impact testWhile not usually specified, if so agreed at the time of ordering, impact tests may be specified for material over 12,5 mm in thickness. The test piece shall be in the longitudinal direction and the test shall be carried out in accordance
