1、BSI Standards PublicationBS ISO 15510:2014Stainless steels ChemicalcompositionBS ISO 15510:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 15510:2014. It supersedes BS ISO 15510:2010 which is withdrawn.The UK participation in its preparation was entrusted
2、to Technical Committee ISE/105, Steels for Heat Treatment, Alloy Steels, Free-Cutting Steels and Stainless Steels.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract.
3、 Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 80915 6ICS 77.140.20Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authorit
4、y of the Standards Policy and Strategy Committee on 31 May 2014.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 15510:2014 ISO 2014Stainless steels Chemical compositionAciers inoxydables Composition chimiqueINTERNATIONAL STANDARDISO15510Second edition2014-05-15Refere
5、nce numberISO 15510:2014(E)BS ISO 15510:2014ISO 15510:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical,
6、 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 ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax +
7、41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 15510:2014ISO 15510:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Chemical composition . 15 Designation of comparable steels . 1Annex
8、A (informative) Designation of the steels given in Table 1 and of comparable grades covered in various designation systems .17Annex B (informative) Designation of the steels given in Table 1 and of comparable grades covered in various International Standards .42Annex C (informative) Classification o
9、f grades .52Annex D (informative) Density values for stainless steels55Bibliography .61BS ISO 15510:2014ISO 15510:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International St
10、andards 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, governmental and non-governmental, in liaison with ISO, also
11、 take part in the work. ISO 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
12、 particular the different 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 (see www.iso.org/directives). Attention is drawn to the possibility that some of the element
13、s of this document may be the subject 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 (
14、see www.iso.org/patents). Any trade name 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 adherenc
15、e to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 17, Steel, Subcommittee SC 4, Heat treatable and alloy steels.This second edition cancels and replaces the first edition (
16、ISO 15510:2010), which has been technically revised.iv ISO 2014 All rights reservedBS ISO 15510:2014INTERNATIONAL STANDARD ISO 15510:2014(E)Stainless steels Chemical composition1 ScopeThis International Standard lists the chemical compositions of stainless steels agreed by ISO/TC 17/SC 4, mainly on
17、the basis of a composition of the specifications in existing ISO, ASTM, EN, JIS, and GB (Chinese) standards. They apply to all wrought product forms including ingots and semi-finished material.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this docu
18、ment and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO/TS 4949, Steel names based on letter symbolsISO 6929, Steel products Vocabulary3 Terms an
19、d definitionsFor the purposes of this document, the terms and definition given in ISO 6929 and the following apply.3.1stainless steelsteel with at least 10,5 % (mass fraction) Cr and maximum 1,2 % (mass fraction) CNote 1 to entry: For the classification of stainless steels according to their structu
20、re, composition and application, see Annex C.4 Chemical compositionThe chemical composition of stainless steels approved by ISO/TC 17/SC 4 is given in Table 1.WARNING Due to hazardous effects to health and environmental problems of lead (Pb), it is recommended to use steels with sulfur additions ins
21、tead. These steels generally have comparable properties relating to machinability.NOTE If, in special cases, for example, an ISO committee charged with the establishment or revision of a standard for a specific product or application of stainless steels sees the necessity of deviating from the speci
22、fications in Table 1, it should inform ISO/TC 17/SC 4 (Secretariats address: FES/DIN, Postfach 10 51 45, 40042 Dusseldorf, Germany) of the reasons for this and try, before such deviations are considered, to achieve consensus for a corresponding modification to Table 1.5 Designation of comparable ste
23、elsFor the steel grades covered by this International Standard, the steel names as given in the tables are allocated in accordance with ISO/TS 4949.For the steel grades covered by this International Standard, the steel numbers as given in the tables are based on a 10-digit code presented in 4 subgro
24、ups of digits: 4 digits-3 digits-2 digits-1 digit.XXXX-YYY-ZZ-A ISO 2014 All rights reserved 1BS ISO 15510:2014ISO 15510:2014(E)The steel number of each grade is based on a decision of the ISO/TC 17/SC 4 group, taking into account several commonly used existing standards and designations.In particul
25、ar, the principles below have been used for the steel numbers. The first subgroup contains four digits and is comparable to the European designation (EN numbers): keeping the number on the right side and dropping the “1”. The second subgroup contains three digits and refers, in most cases, to the th
26、ree middle digits of the UNS number used by ASTM. In the case of the ISO designation, contrary to the UNS system, no letter (an S or an N in the case of stainless steels) is used as a start. This 3-digit subgroup allows reference to the obsolete AISI numbers or to the numerical part of the standard
27、designations used in other countries, such as Japan (JIS) and China (GB). The third subgroup contains two digits. In most cases, similar principles to those used in the UNS have been adopted. Care should be taken because some differences can exist among UNS, Chinese, and ISO designations (see Table
28、2). The principles stated in Table 2 apply within each YYY series. The last digit is a single letter that allows the reader to identify, in a simple way, if the grade composition corresponds exactly to that included in one or more of the four existing standard practices from Europe, the USA, Japan,
29、or China. If the composition is a compromise between several standards, it is then a new and genuine ISO composition. The last digit of the ISO designation is then I (see Table 3).Table 4 gives complementary explanations for the use of the ISO numbering system through examples.Tables A.1, A.2, and A
30、.3 in Annex A give the designations of stainless steels which are listed in other designation systems and are identical or comparable to the grades in Table 1. In Table A.1, the sequence of steels is the same as in Table 1. In Table A.2, the sequence is given in the order of the three middle digits
31、defined by the first three UNS numbers. In Table A.3, the sequence is given in the order of the European system.Table B.1 in Annex B gives a list where the steel grades of Table 1 are to be found in other International Standards.Table D.1 in Annex D comprises density values for the steels given in T
32、able 1.NOTE 1 To compare similar grades, it is necessary to check each element before making a substitution.NOTE 2 Steels in this International Standard and in ISO 16143-1 to ISO 16143-3 are listed according to a line number (see Table A.1) with the following rules. The primary rule is ordering by a
33、ustentic steels (without Mo), austenitic steels with Mo, austentic steels with Ni/Co as the main alloying elements, austenitic-ferritic (duplex) steels first without Mo then with Mo, ferritic steels first without Mo then with Mo, martensitic steels first without Mo then with Mo and precipitation-har
34、dening steels without and with Mo. The secondary rule is ordering by the line numbers as given in Table A.1. The line number consists of two letters, two digits. and a last letter. For the first letter a means for austenitic steels, d for duplex steels, f for ferritic steels, m for martensitic steel
35、s and p for precipitation-hardening steels. The second letter means P for pure without Mo, M for molybdenum and N for Ni/Co as the main alloying element. The next two digits are the sum of the main alloying elements of Cr, Mo and Ni/Mn/Co (for the ferritic and martensitic steels it is only the sum o
36、f Cr and Mo). The last digit stands for the relative C-content (A means low carbon and Z means high carbon). Although, for example, for the first some 25 austenitic steels are strictly ordered by this criteria it is not consequently applied when grouping of steel grades with the same characteristics
37、 seems to be beneficial, like austenitic-maganese-alloyed steels or steels of the AISI 316 series. The line number is by no means a steel designation and it is not for commercial purposes.2 ISO 2014 All rights reservedBS ISO 15510:2014ISO 15510:2014(E)Table1Internationalagreedspecificationsforthecom
38、positionofstainlesssteels(applicableforcastanalysis)Steeldesignation% (massfraction)aISOnameISOnumberLinenumberCSiMnPSCrMoNiNOthersa)AusteniticsteelsX5CrNi17-74319-301-00-IAP24H0,071,002,000,0450,030b16,0 to 18,06,0 to 8,00,10X12CrNi17-74310-301-09-XAP24N0,151,002,000,0450,03016,0 to 18,06,0 to 8,0X
39、2CrNiN18-74318-301-53-IAP25A0,0301,002,000,0450,01516,0 to 18,56,0 to 8,00,10 to 0,20X6CrNiCu17-8-24567-304-76-IAP25J0,081,703,000,0450,03015,0 to 18,06,0 to 9,0Cu: 1,00 to 3,0X10CrNi18-84310-301-00-IAP26L0,05 to 0,152,002,000,0450,030b16,0 to 19,00,806,0 to 9,50,10X2CrNi18-94307-304-03-IAP27B0,0301
40、,002,000,0450,030b17,5 to 19,58,0 to 10,5c0,10X7CrNi18-94948-304-09-IAP27L0,04 to 0,101,002,000,0450,030b17,5 to 19,58,0 to 11,00,10X9CrNi18-94325-302-00-EAP27N0,030 to 0,151,002,000,0450,03017,0 to 19,08,0 to 10,00,10X10CrNiS18-94305-303-00-IAP27M0,121,002,000,0600,1517,0 to 19,08,0 to 10,00,10Cu:e
41、X12CrNiSe18-94625-303-23-XAP27O0,151,002,000,200,06017,0 to 19,08,0 to 10,0Se:0,15X12CrNiSi18-9-34326-302-15-IAP27P0,152,00 to 3,002,000,0450,03017,0 to 19,08,0 to 10,0X2CrNiN18-94311-304-53-IAP27A0,0301,002,000,0450,030b17,5 to 19,58,0 to 11,00,12 to 0,22X6CrNiCu18-9-24567-304-98-XAP27J0,081,002,00
42、0,0450,03017,0 to 19,08,0 to 10,5Cu: 1,00 to 3,0X3CrNiCu18-9-44567-304-30-IAP27F0,041,002,000,0450,030b17,0 to 19,08,0 to 10,50,10Cu: 3,0 to 4,0X6CrNiCuS18-9-24570-303-31-IAP27I0,081,002,000,0450,1517,0 to 19,00,608,0 to 10,00,10Cu: 1,40 to 1,80X12CrNiCuS18-9-34667-303-76-JAP27Q0,151,003,000,200,151
43、7,0 to 19,08,0 to 10,0Cu: 1,50 to 3,5X5CrNiN19-94315-304-51-IAP28F0,081,002,500,0450,03018,0 to 20,07,0 to 10,50,10 to 0,30fX3CrNiCu19-9-24560-304-75-EAP28D0,0351,001,50 to 2,000,0450,01518,0 to 19,08,0 to 9,00,10Cu: 1,50 to 2,00X6CrNiCu19-9-14649-304-76-JAP28I0,081,002,000,0450,03018,0 to 20,08,0 t
44、o 10,5Cu: 0,70 to 1,30X5CrNiCu19-6-24640-304-76-EAP28L0,030 to 0,080,501,50 to 4,00,0450,01518,0 to 19,05,5 to 6,90,03 to 0,11Cu: 1,30 to 2,00X5CrNi18-104301-304-00-IAP28E0,071,002,000,0450,030b17,5 to 19,58,0 to 10,5c0,10X6CrNiTi18-104541-321-00-IAP28G0,081,002,000,0450,030b17,0 to 19,09,0 to 12,0c
45、Ti: 5 C to 0,70X7CrNiTi18-104940-321-09-IAP28O0,04 to 0,101,002,000,0450,030b17,0 to 19,09,0 to 12,0cTi: 5 C to 0,80X6CrNiTiB18-104941-321-09-IAP28J0,04 to 0,081,002,000,0350,01517,0 to 19,09,0 to 12,0Ti: 5 C to 0,70B: 0,0015 to 0,0050 ISO 2014 All rights reserved 3BS ISO 15510:2014ISO 15510:2014(E)
46、Steeldesignation% (massfraction)aISOnameISOnumberLinenumberCSiMnPSCrMoNiNOthersX6CrNiNb18-104550-347-00-IAP28H0,081,002,000,0450,030b17,0 to 19,09,0 to 12,0cNb: 10 Cto 1,00X7CrNiNb18-104912-347-09-IAP28K0,04 to 0,081,002,000,0450,030b17,0 to 19,09,0 to 12,0cNb: 10 Cto 1,00X2CrNiCu19-104650-304-75-EA
47、P29A0,0301,002,000,0450,01518,5 to 20,09,0 to 10,00,08Cu: 1,00X2CrNi19-114306-304-03-IAP30A0,0301,002,000,0450,030b18,0 to 20,010,0 to 12,0c0,10X6CrNi18-124303-305-00-IAP30I0,081,002,000,0450,030b17,0 to 19,010,5 to 13,00,10X8CrNiNb16-134961-347-77-EAP29L0,04 to 0,100,30 to 0,601,500,0350,01515,0 to
48、 17,012,0 to 14,0Nb: 10 Cto 1,20X6CrNiSiNCe19-104818-304-15-EAP29J0,04 to 0,081,00 to 2,001,000,0450,015b18,0 to 20,09,0 to 11,00,12 to 0,20Ce: 0,03 to 0,08X40CrNiWSi15-14-3-24867-316-77-JAP29P0,35 to 0,451,50 to 2,500,600,0400,03014,0 to 16,013,0 to 15,0W: 2,00 to 3,00X6CrNiSi18-13-44884-305-00-XAP
49、31H0,083,0 to 5,02,000,0450,03015,0 to 20,011,5 to 15,0X7CrNiSiNCe21-114835-308-15-UAP32N0,05 to 0,101,40 to 2,000,800,0400,03020,0 to 22,010,0 to 12,00,14 to 0,20Ce: 0,03 to 0,08X15CrNiSi20-124828-305-09-IAP32R0,201,50 to 2,502,000,0450,03019,0 to 21,011,0 to 13,00,10X1CrNiSi18-15-44361-306-00-EAP33A0,0153,7 to 4,52,000,0250,01016,5 to 18,50,2014,0 to 16,00,10X8CrMnCuN17-8-34597-204-76-IAP25L0,102,006,5 to 9,00,0400,03015,0 to 18,01,003,000,10 to 0,
