1、BSI Standards PublicationBS ISO 11973:2015Heat-resistant cast steels andalloys for general applicationsBS ISO 11973:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 11973:2015. The UK participation in its preparation was entrusted to TechnicalCommittee ISE/
2、111, Steel Castings and Forgings.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. Users are responsible for its correct application. The British Standards Institu
3、tion 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 76499 8 ICS 77.140.20; 77.140.80 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 201
4、5.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 11973:2015 ISO 2015Heat-resistant cast steels and alloys for general applicationsAciers et alliages mouls rfractaires destins des applications gnralesINTERNATIONAL STANDARDISO11973Second edition2015-09-15Reference num
5、berISO 11973:2015(E)BS ISO 11973:2015ISO 11973:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electr
6、onic 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 ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier,
7、 Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 11973:2015ISO 11973:2015(E)Foreword iv1 Scope . 12 Normative references 13 General conditions for delivery 14 Heat treatment . 15 Chemical composition . 16 Mechanical properties 17 Maximum use temperature
8、. 18 Supplementary requirements 1Annex A (informative) UNS cast grades similar to ISO cast grades . 5Bibliography 6 ISO 2015 All rights reserved iiiContents PageBS ISO 11973:2015ISO 11973:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national st
9、andards bodies (ISO 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 o
10、rganizations, governmental 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.The procedures used to develop this document and those intended for i
11、ts further maintenance are described in the ISO/IEC Directives, Part 1. In 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/d
12、irectives).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. Details of any patent rights identified during the development of the document will be in
13、the Introduction and/or on the ISO list of patent declarations received (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 rela
14、ted to conformity assessment, as well as information about ISOs adherence 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/TC17, Steel, Subcommitee SC11, Steel castings.This se
15、cond edition cancels and replaces the first edition (ISO 11973:1999), which has been technically revised with the following changes: Clause 8 revised; Table 1 composition limits modified various grades; Tables 1 and 2 grade number added; Annex A added.iv ISO 2015 All rights reservedBS ISO 11973:2015
16、INTERNATIONAL STANDARD ISO 11973:2015(E)Heat-resistant cast steels and alloys for general applications1 ScopeThis International Standard specifies chemical composition and mechanical properties of cast steels and alloys for heat-resistant service.2 Normative referencesThe following documents, in who
17、le or in part, are normatively referenced in this document 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 4990, Steel castings General techni
18、cal delivery requirements3 General conditions for deliveryMaterials furnished in conformity with this International Standard shall conform to the applicable requirements of ISO 4990 including the supplementary requirements that are indicated on the enquiry and purchase order.4 Heat treatmentGX40CrSi
19、13, GX40CrSi17, GX30CrSi7, GX40CrSi24, GX40CrSi28, and GX130CrSi29 may be annealed at a temperature of 800 C to 850 C. If required, GX30CrSi7 may also be supplied in the as-cast condition. Other grades produced according to this International Standard do not require heat treatment. If heat treatment
20、 is required, the treatment should be established by agreement between the manufacturer and the purchaser, and should be specified in the purchase contract.5 Chemical compositionThe chemical composition of the alloys shall comply with the values given in Table 1.6 Mechanical propertiesMechanical tes
21、ting at room temperature shall be performed when agreed upon between the manufacturer and purchaser in which case the material shall conform to the requirements listed in Table 2.7 Maximum use temperatureLimited information on maximum use temperatures are included in Table 2. These values are intend
22、ed to allow comparison of grades. The actual conditions of service must be considered when selecting a grade including the composition of the environment and service mechanical loading.8 Supplementary requirementsA list of standardized supplementary requirements for use on the option of the purchase
23、r is included in ISO 4990. Others, whether or not in ISO 4990, may be used with this specification upon agreement between the manufacturer and the purchaser. ISO 2015 All rights reserved 1BS ISO 11973:2015ISO 11973:2015(E)Table 1 Chemical composition, % (m/m) Grade designationC Si Mn P S Cr Mo Ni Ot
24、hersName NumberGX30CrSi7 1.47100,20 0,351,0 2,50,5 1,00,035 0,030 6,0 8,00,15 0,5 GX40CrSi13 1.47290,30 0,501,0 2,51,0 0,040 0,030 12,0 14,00,15 0,5 GX40CrSi17 1.47400,30 0,501,0 2,51,0 0,040 0,030 16,0 19,00,50 1,0 GX40CrSi24 1.47450,30 0,501,0 2,51,0 0,040 0,030 23,0 26,00,50 1,0 GX40CrSi28 1.4776
25、0,30 0,501,0 2,51,0 0,040 0,030 27,0 30,00,50 1,0 GX130CrSi29 1.47771,20 1,401,0 2,50,5 1,00,035 0,030 27,0 30,00,50 1,0 GX25CrNiSi189 1.48250,15 0,350,5 2,52,0 0,040 0,030 17,0 19,00,50 8,0 10,0GX25CrNiSi2014 1.48320,15 0,350,5 2,52,0 0,040 0,030 19,0 21,00,50 13,0 15,0GX40CrNiSi2210 1.48260,30 0,5
26、01,0 2,52,0 0,040 0,030 21,0 23,00,50 9,0 11,0GX40CrNiSiNb2424 1.48550,30 0,501,0 2,52,0 0,040 0,030 23,0 25,00,50 23,0 25,0Nb: 0,801,80GX40CrNiSi2512 1.48370,30 0,501,0 2,50,5 2,00,040 0,030 24,0 27,00,50 11,0 14,0GX40CrNiSi2520 1.48480,30 0,501,0 2,52,0 0,040 0,030 24,0 27,00,50 19,0 22,0GX40CrNiS
27、i274 1.48230,30 0,501,0 2,51,5 0,040 0,030 25,0 28,00,50 3,0 6,0GX50NiCrCo202020 1.48740,35 0,651,0 2,0 0,040 0,030 19,0 22,02,50 3,0018,0 22,0Co: 18,5 22,0 Nb: 0,75 1,25 W: 2 ,0 3,0GX10NiCrSiNb3220 1.48590,05 0,150,5 1,52,0 0,040 0,030 19,0 21,00,50 31,0 33,0Nb: 0,50 1,50GX40NiCrSi3517 1.48060,30 0
28、,501,0 2,52,0 0,040 0,030 16,0 18,00,50 34,0 36,0GX40NiCrSi3526 1.48570,30 0,501,0 2,52,0 0,040 0,030 24,0 27,00,50 33,0 36,0GX40NiCrSiNb3526 1.48520,30 0,501,0 2,52,0 0,040 0,030 24,0 27,00,50 33,0 36,0Nb: 0,801,80GX40NiCrSi3819 1.48650,30 0,501,0 2,52,0 0,040 0,030 18,0 21,00,50 36,0 39,0GX40NiCrS
29、iNb3819 1.48490,30 0,501,0 2,52,0 0,040 0,030 18,0 21,00,50 36,0 39,0Nb 1,20 1,80G-NiCr28W 2.48790,35 0,551,0 2,01,5 0,040 0,030 27,0 30,00,50 47,0 50,0W: 4,06,0NOTE A single value is the maximum limit.aBalance.2 ISO 2015 All rights reservedBS ISO 11973:2015ISO 11973:2015(E)Grade designationC Si Mn
30、P S Cr Mo Ni OthersName NumberG-NiCr50Nb 2.46800,10 1,0 1,0 0,020 0,020 48,0 52,00,50aFe: 1,00 N: 0,16 Nb: 1,00 1,80G-NiCr19 2.46870,40 0,600,5 2,01,5 0,040 0,030 16,0 21,00,50 50,0 55,0G-NiCr15 2.48150,35 0,652,0 1,3 0,040 0,030 13,0 19,0- 64,0 69,0GX50NiCr-CoW35251551.48690,45 0,551,0 2,01,0 0,040
31、 0,030 24,0 26,0- 33,0 37,0W: 4,06,0 Co: 14,016,0G-CoCr28 2.47780,05 0,250,5 1,51,5 0,040 0,030 27,0 30,00,50 4,0 Co: 48,052,0 Fe: balanceNOTE A single value is the maximum limit.aBalance.Table 1 (continued) ISO 2015 All rights reserved 3BS ISO 11973:2015ISO 11973:2015(E)Table 2 Mechanical propertie
32、s at room temperature and maximum use temperatureGrade designation Rp0,2MPaamin.RmMPaaminA%min.HBWMaximum use temperaturebCName NumberGX30CrSi7 1.4710 750GX40CrSi13 1.4729 300c850GX40CrSi17 1.4740 300c900GX40CrSi24 1.4745 300c1 050GX40CrSi28 1.4776 320c1 100GX130CrSi29 1.4777 400c1 100GX25CrNiSi189
33、1.4825 230 450 15 900GX25CrNiSi2014 1.4832 230 450 10 900GX40CrNiSi2210 1.4826 230 450 8 950GX40CrNiSiNb2424 1.4855 220 400 4 1 050GX40CrNiSi2512 1.4837 220 450 6 1 050GX40CrNiSi2520 1.4848 220 450 6 1 100GX40CrNiSi274 1.4823 250 400 3 400d1 100GX40NiCrCo202020 1.4874 320 400 6 1 150GX10NiCrNb3220 1
34、.4859 170 440 20 1 000GX40NiCrSi3517 1.4806 220 420 6 980GX40NiCrSi3526 1.4857 220 440 6 1 050GX40NiCrSiNb3526 1.4852 220 440 4 1 050GX40NiCrSi3819 1.4865 220 420 6 1 050GX40NiCrSiNb3819 1.4849 220 420 4 1 000G-NiCr28W 2.4879 220 400 3 1 200G-NiCr50Nb 2.4680 230 540 8 1 050G-NiCr19 2.4687 220 440 5
35、1 100G-NiCr15 2.4815 200 400 3 1 100GX50NiCrCoW3525155 1.4869 270 480 5 1 200G-CoCr28 2.4778e e e1 200a1 MPa = 1 N/mm2.bMaximum use temperature depends on the actual use conditions and these values are being given only to aid the user. These are given for oxidising environments. The actual compositi
36、on will also affect performance.cMaximum HBW in annealed condition. Castings may also be supplied in the “as-cast” condition, in which case hardness limits will not apply.dMaximum HBW.eProperties as agreed.4 ISO 2015 All rights reservedBS ISO 11973:2015ISO 11973:2015(E)Annex A (informative) UNS cast
37、 grades similar1)to ISO cast gradesTable A.1 UNS cast grades similar to ISO cast gradesGrade designation UNS number(similar or identi-cal)Name NumberGX30CrSi7 1.4710 GX40CrSi13 1.4729 J91153GX40CrSi17 1.4740 GX40CrSi24 1.4745 GX40CrSi28 1.4776 J92605GX130CrSi29 1.4777 GX25CrNiSi189 1.4825 J92803GX25
38、CrNiSi2014 1.4832 GX40CrNiSi2210 1.4826 J92803GX40CrNiSiNb2424 1.4855 GX40CrNiSi2512 1.4837 J93503GX40CrNiSi2520 1.4848 J94204GX40CrNiSi274 1.4823 J93005GX40NiCrCo202020 1.4874 GX10NiCrNb3220 1.4859 N08151GX40NiCrSi3517 1.4806 N08002GX40NiCrSi3526 1.4857 N08705GX40NiCrSiNb3526 1.4852 GX40NiCrSi3819
39、1.4865 N08004GX40NiCrSiNb3819 1.4849 N08008G-NiCr28W 2.4879 G-NiCr50Nb 2.4680 R20501G-NiCr19 2.4687 G-NiCr15 2.4815 N06006GX50NiCrCoW3525155 1.4869 G-CoCr28 2.4778 NOTE The grade designations including the names and the numbers follow the rules of EN 10027-1 and EN 10027-2.1) The similar UNS (Unifie
40、d Numbering System) grades may not be equivalent to the grades in this International Standard. ISO 2015 All rights reserved 5BS ISO 11973:2015ISO 11973:2015(E)Bibliography1 EN 10027-1, Designation system for steels Part 1: Steel names2 EN 10027-2, Designation system for steels Part 2: Steel numbers6
41、 ISO 2015 All rights reservedBS ISO 11973:2015BS ISO 11973:2015ISO 11973:2015(E) ISO 2015 All rights reservedICS 77.140.80; 77.140.20Price based on 6 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, i
42、nformation and services.BSI is incorporated by Royal Charter. British Standards and other standardization products are published by BSI Standards Limited.British Standards Institution (BSI)BSI Group Headquarters389 Chiswick High Road London W4 4AL UKAbout usWe bring together business, industry, gove
43、rnment, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions.The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through our open consultation process. Organizations of all sizes and acro
44、ss all sectors choose standards to help them achieve their goals.Information on standardsWe can provide you with the knowledge that your organization needs to succeed. Find out more about British Standards by visiting our website at or contacting our Customer Services team or Knowledge Centre.Buyin
45、g standardsYou can buy and download PDF versions of BSI publications, including British and adopted European and international standards, through our website at where hard copies can also be purchased. If you need international and foreign standards from other Standards Development Organizations, h
46、ard copies can be ordered from our Customer Services team.SubscriptionsOur range of subscription services are designed to make using standards easier for you. For further information on our subscription products go to British Standards Online (BSOL) youll have instant access to over 55,000 British
47、and adopted European and international standards from your desktop. Its available 24/7 and is refreshed daily so youll always be up to date. You can keep in touch with standards developments and receive substantial discounts on the purchase price of standards, both in single copy and subscription fo
48、rmat, by becoming a BSI Subscribing Member. PLUS is an updating service exclusive to BSI Subscribing Members. You will automatically receive the latest hard copy of your standards when theyre revised or replaced. To find out more about becoming a BSI Subscribing Member and the benefits of membership
49、, please visit a Multi-User Network Licence (MUNL) you are able to host standards publications on your intranet. Licences can cover as few or as many users as you wish. With updates supplied as soon as theyre available, you can be sure your documentation is current. For further information, email .RevisionsOur Br
