1、BSI Standards PublicationBS ISO 19960:2015Cast steels and alloys withspecial physical propertiesBS ISO 19960:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 19960:2015. It supersedes BS ISO 19960:2005 which is withdrawn.The UK participation in its preparat
2、ion was entrusted to Technical Committee ISE/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 corre
3、ct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 76506 3 ICS 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 Stra
4、tegy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 19960:2015 ISO 2015Cast steels and alloys with special physical propertiesAciers et alliages mouls avec caractristiques physiques particuliresINTERNATIONAL STANDARDISO19960Second edit
5、ion2015-09-15Reference numberISO 19960:2015(E)BS ISO 19960:2015ISO 19960:2015(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 fo
6、rm 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 ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonne
7、t 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 19960:2015ISO 19960:2015(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 General conditions for delivery 15 Chemical composition . 16 Mechanical prope
8、rties 17 Heat treatment . 28 Welding . 29 Verification of physical properties 210 Supplementary requirements 2Annex A (informative) UNS cast grades similar to ISO cast grades . 6Bibliography 7 ISO 2015 All rights reserved iiiContents PageBS ISO 19960:2015ISO 19960:2015(E)ForewordISO (the Internation
9、al 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 committees. Each member body interested in a subject for which a technical committee has been e
10、stablished 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 the International Electrotechnical Commission (IEC) on all matters of electrotechnical standard
11、ization.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 approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance
12、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 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 a
13、ny patent rights identified during the development of the document will be in 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 endorseme
14、nt.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 WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible
15、 for this document is ISO/TC 17, Steel, Subcommittee SC 11, Steel castings.This second edition cancels and replaces the first edition (ISO 19960:2005), which has been technically revised with the following changes: Tables 1, 2, 3, and 4, grade numbers added; Table 5, deleted; original Annex A delete
16、d, new Annex A added.iv ISO 2015 All rights reservedBS ISO 19960:2015INTERNATIONAL STANDARD ISO 19960:2015(E)Cast steels and alloys with special physical properties1 ScopeThis International Standard specifies cast steel and alloy grades with special physical properties. The cast steel and alloy grad
17、es covered by this International Standard are used in applications which require low linear thermal expansion, or low ferromagnetic responses, or low galling properties.NOTE Annex A gives information on ISO grade designation and available UNS numbers which are similar to the ISO grade designations.2
18、 Normative referencesThe following documents, in whole 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 amendme
19、nts) applies.ISO 4990, Steel castings General technical delivery requirementsISO 11970, Specification and approval of welding procedures for production welding of steel castings3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 4990 and the following app
20、ly.3.1gallingdamage or breaking of the surface by friction or abrasion4 General conditions for deliveryMaterials furnished according to this International Standard shall conform to the applicable requirements of ISO 4990 including the supplementary requirements that are indicated on the enquiry and
21、purchase order.5 Chemical compositionThe cast steel and alloy grades shall conform to the requirements for chemical composition specified in Table 1.6 Mechanical propertiesCast steel and alloy grades shall conform to the mechanical property requirements given in Table 2 up to the maximum ruling thic
22、kness. Verification of impact properties is not required except when indicated by the customer. Test blocks used to verify the mechanical properties shall not have a thickness exceeding 100 mm. For blocks taken from castings, the test bar location and the mechanical properties required shall be agre
23、ed between the manufacturer and purchaser.For grades GX3NiCo32, GX3NiCo29-17, and G-NiCr13SnBiMo, no mechanical properties are specified. ISO 2015 All rights reserved 1BS ISO 19960:2015ISO 19960:2015(E)7 Heat treatmentCastings shall be heat treated in accordance with the requirements of Table 3. 8 W
24、eldingCastings shall be welded in accordance with the procedures described in ISO 11970.9 Verification of physical propertiesWhen physical properties are specified, the method of measurement and acceptance requirements shall be the subject of an agreement between the manufacturer and purchaser. Typi
25、cal values for some physical properties are given in Table 4.10 Supplementary requirementsA list of standardized supplementary requirements for use at the option of the purchaser is included in ISO 4990. The subclauses of ISO 4990 which are ordinarily considered suitable for use with this Internatio
26、nal Standard are given in Annex A. Other supplementary requirements, whether or not in ISO 4990, may be used with this International Standard upon agreement by the manufacturer and purchaser.2 ISO 2015 All rights reservedBS ISO 19960:2015ISO 19960:2015(E)Table1 Chemical composition, % (m/m)dGradedes
27、ignationCSiMnPSCrMoNiNCoOthersNameNumberGX12CrNi1811a1.39550,151,002,00,0450,03016,518,50,7510,012,0GX2CrNiN1813a1.39400,0301,002,00,0350,02016,518,5-12,014,00,100,20GX2CrNiMoN1814a1.39600,0301,002,00,0350,02016,518,52,53,013,015,00,150,25GX2CrNiN1911a1.39390,0301,52,00,0350,02018,020,01,010,012,00,
28、100,20GX3CrNiMnSi179-8a1.39750,053,54,57,09,00,0450,03016,018,01,08,09,00,080,18GX4CrNiMnN22125a1.39560,061,04,06,00,0400,03020,523,51,503,0011,513,50,200,40Nb: 0,100,30V:0,100,30GX2CrNiMnMoNNb21165-3a1.39670,0301,04,06,00,0250,01020,021,53,03,515,017,00,200.35Nb: 0,25GX3NiCo32b1.39830,050,500,60,03
29、00,020,251,030,533,54,06,5Al:0,10GX1NiCo2917b1.39880,050,500,50,0300,020,251,028,030,016,018,0GX3Ni36b1.39610,050,50,50,0300,020,251,035,037,0GX5NiS36b1.39630,050,50,50,0300,100,200,251,035,037,0G-NiCr13SnBiMoc2.47120,050,51,50,0300,03011,014,02,03,5balanceFe:2,0Bi:3,05,0Sn:3,05,0aLow ferromagnetic
30、response grades with magnetic permeability, r1,01.bFor low linear-expansion grades see Table4.cLow galling grade.dSinglevalueindicatesmaximum. ISO 2015 All rights reserved 3BS ISO 19960:2015ISO 19960:2015(E)Table 2 Mechanical properties at room temperatureGrade designation Rp0,2min.MPaaRmN/mm2aAmin.
31、%KVmin.JName NumberGX12CrNi1811b1.3955 195 440 to 590 20 80GX2CrNiN1813b1.3940 210 440 to 640 30 115GX2CrNiMoN1814b1.3960 240 490 to 690 30 80GX2CrNiN1911b1.3939 180 440 30GX3CrNiMnSi179-8b1.3975 290 580 24GX4CrNiMnN22125b1.3956 290 580 24GX2CrNiMnMoNNb21165-3b1.3967 315 570 to 800 20 65GX3Ni36c1.39
32、61 275 395 28GX5NiS36c1.3963 275 395 25a1 MPa =1 N/mm2bLow ferromagnetic response grades with magnetic permeability, r 1,01.cFor low linear-expansion grades, see Table 4.Table 3 Heat treatmentGrade designationTreatmentName NumberGX12CrNi1811 b1.3955 Solution anneal 1 050 C to 1 150 C; quenchGX2CrNiN
33、1813 b1.3940 Solution anneal 1 050 C to 1 150 C; quenchGX2CrNiMoN1814 b1.3960 Solution anneal 1 050 C to 1 150 C; quenchGX2CrNiN1911 b1.3939 Solution anneal 1 050 C min; quenchGX3CrNiMnSi179-8 b1.3975 Solution anneal 1 050 C min; quenchGX4CrNiMnN22125 b1.3956 Solution anneal 1 065 C min; quenchGX2Cr
34、NiMnMoNNb21165-3 b1.3967 Solution anneal 1 080 C to 1180 C; quenchGX3NiCo32 c1.3983 820 C to 850 C/quench + 300 to 350 C/airGX1NiCo2917 c1.3988 820 C to 850 C/quench + 300 to 350 C/airGX3Ni36 c1.3961 820 C to 850 C/quench + 300 to 350 C/airGX5NiS36 c1.3963 820 C to 850 C/quench + 300 to 350 C/airG-N
35、iCr13SnBiMo d2.4712 As castaTemperatures are for information only.bLow ferromagnetic response grades with magnetic permeability, r 1,01.cFor low linear-expansion grades see Table 4.dLow galling grade.4 ISO 2015 All rights reservedBS ISO 19960:2015ISO 19960:2015(E)Table 4 Typical values for physical
36、propertiesGrade designation Coefficient of expansion (mm/mm)(106K1)Name Number20 C to 100 C20 C to 200 C20 C to 300 C20 C to 500 C20 C to 800 CGX3NiCo32 1.3983 0,63 GX1NiCo2917 1.3988 5,9 5,2 5,1 6,1 10,3GX3Ni36 1.3961 1,3 2,1 4,2 GX5Ni36S 1.3963 1,6 3,0 5,9 ISO 2015 All rights reserved 5BS ISO 1996
37、0:2015ISO 19960:2015(E)Annex A (informative) UNS cast grades similar1)to ISO cast gradesTable A.1 UNS cast grades similar to ISO cast gradesGrade designationUNS NumbersName NumberGX12CrNi1811 1.3955 -GX2CrNiN1813 1.3940 J92500GX2CrNiMoN1814 1.3960 -GX2CrNiN1911 1.3939 -GX3CrNiMnSi179-8 1.3975 J92972
38、GX4CrNiMnN22125 1.3956 J93790GX2CrNiMnMoNNb21165-3 1.3967 -GX3NiCo32 1.3983 -GX1NiCo2917 1.3988 -GX3Ni36 1.3961 -GX5NiS36 1.3963 -G-NiCr13SnBiMo 2.4712 N26055NOTE The grade designations including the names and the numbers follow the rules of EN 10027-1 and EN 10027-2.1) The similar UNS (Unified Numb
39、ering System) grades may not be equivalent to the grades in this International Standard.6 ISO 2015 All rights reservedBS ISO 19960:2015ISO 19960:2015(E)Bibliography1 EN 10027-1, Designation system for steels Part 1: Steel names2 EN 10027-2, Designation system for steels Part 2: Steel numbers ISO 201
40、5 All rights reserved 7BS ISO 19960:2015ISO 19960:2015(E) ISO 2015 All rights reservedICS 77.140.80Price based on 7 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is inc
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