1、BSI Standards PublicationBS ISO 14737:2015Carbon and low alloy caststeels for general applicationsBS ISO 14737:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 14737:2015.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/111, S
2、teel Castings and Forgings.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015
3、.Published by BSI Standards Limited 2015ISBN 978 0 580 76504 9ICS 77.140.80Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2015.Amendments/corrigenda i
4、ssued since publicationDate T e x t a f f e c t e dBS ISO 14737:2015 ISO 2015Carbon and low alloy cast steels for general applicationsAciers mouls au carbone et faiblement allis dusage gnralINTERNATIONAL STANDARDISO14737Second edition2015-12-15Reference numberISO 14737:2015(E)BS ISO 14737:2015ISO 14
5、737:2015(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, electronic or mechanical, including photocopying,
6、 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, Geneva, SwitzerlandTel. +41 22 749 01 11Fa
7、x +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 14737:2015ISO 14737:2015(E)Foreword iv1 Scope . 12 Normative references 13 General conditions for delivery 14 Chemical composition . 15 Heat treatment . 16 Mechanical properties 17 Test methods . 18 Supplementary requirements 29 Marking 2Annex A (i
8、nformative) Guidance data for welding . 7Annex B (informative) UNS cast grades similar to ISO cast grades . 8Bibliography 9 ISO 2015 All rights reserved iiiContents PageBS ISO 14737:2015ISO 14737:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of nat
9、ional 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 established has the right to be represented on that committee. Interna
10、tional 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 standardization.The procedures used to develop this document and those intend
11、ed 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 with the editorial rules of the ISO/IEC Directives, Part 2 (see www.i
12、so.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 any patent rights identified during the development of the document wi
13、ll 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 endorsement.For an explanation on the meaning of ISO specific terms and expres
14、sions 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 for this document is The committee responsible for this document is
15、ISO/TC 17, Steel, Subcommittee SC 11, Steel castings.This second edition cancels and replaces the first edition (ISO 14737:2003) and ISO 3755, of which it constitutes a technical revision. Notably, the following changes have been made to the previous edition: carbon has replaced non-alloy in the tit
16、le of the standard; grades G21Mn5 and G50CrMo4 have been deleted; Annexes A and B have been replaced; new values and grade numbers have been added to Tables 1 and 2 and Annex A.iv ISO 2015 All rights reservedBS ISO 14737:2015INTERNATIONAL STANDARD ISO 14737:2015(E)Carbon and low alloy cast steels fo
17、r general applications1 ScopeThis International Standard specifies requirements for carbon and low alloy cast steel grades for general applications.NOTE Annex B gives information on ISO grade designation and available UNS numbers which are similar to the ISO grade designation.2 Normative referencesT
18、he 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 amendments) applies.ISO 148-1
19、, Metallic materials Charpy pendulum impact test Part 1: Test methodISO 4990, Steel castings General technical delivery requirementsISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperature3 General conditions for deliverySteel castings supplied in accordance with thi
20、s International Standard shall conform to the applicable requirements of ISO 4990, including the supplementary requirements that are indicated in the inquiry and purchase order.4 Chemical compositionThe chemical composition shall conform to the values given in Table 1.5 Heat treatmentThe type of hea
21、t treatment is left to the discretion of the manufacturer unless otherwise agreed upon at the time of inquiry and order. The information for heat treatment described in Table 2 is for information only.6 Mechanical propertiesMechanical properties are given in Table 2 and shall be subject to an agreem
22、ent at the time of inquiry and order.Unless otherwise specified (see ISO 4990), the thickness of the test block shall be 28 mm minimum.Properties at thicknesses greater than the maximum thickness in Table 2 may be lower and are subject to an agreement between manufacturer and purchaser.7 Test method
23、s7.1 The tensile test shall be performed in accordance with ISO 6892-1. ISO 2015 All rights reserved 1BS ISO 14737:2015ISO 14737:2015(E)7.2 The impact test shall be performed in accordance with ISO 148-1.8 Supplementary requirementsA list of supplementary requirements which may be used at the option
24、 of the purchaser is given in ISO 4990.9 MarkingMarking shall be as specified in ISO 4990.2 ISO 2015 All rights reservedBS ISO 14737:2015ISO 14737:2015(E)Table1 Chemical composition, % (m/m)GradedesignationCSiMnPSCrMoNiVCuNameNumberGE 2001.04200,0350,0300,300,120,400,030,30GS 2001.04490,180,601,200,
25、0300,0250,300,120,400,030,30GE2401.04460,0350,0300,300,120,400,030,30GS2401.04550,230,601,200,0300,0250,300,120,400,030,30GS2701.04540,240,601,300,0300,0250,30a0,12a0,40a0,03a0,30aGS 3401.04670,300,601,500,0300,0250,30a0,12a0,40a0,03a0,30aG28Mn61.11650,25 to 0,320,601,20 to 1,800,0350,0300,300,150,4
26、00,050,30G28MnMo61.54330,25 to 0,320,601,20 to 1,600,0250,0250,300,20 to 0,400,400,050,30G20Mo51.54190,15 to 0,230,600,50 to 1,000,0250,020b0,300,40 to 0,600,400,050,30G10MnMoV631.54100,12max.0,601,20 to 1,800,0250,0200,300,20 to 0,400,400,05 to 0,100,30G20NiCrMo221.67410,18 to 0,230,600,60 to 1,000
27、,0350,0300,40 to 0,600,15 to 0,250,40 to 0,700,050,30G25NiCrMo221.67440,23 to 0,280,600,60 to 1,000,0350,0300,40 to 0,600,15 to 0,250,40 to 0,700,050,30G30NiCrMo221.67780,28 to 0,330,600,60 to 1,000,0350,0300,40 to 0,600,15 to 0,250,40 to 0,700,050,30G17CrMo551.73570,15 to 0,200,600,50 to 1,000,0250
28、,020b1,00 to 1,500,45 to 0,650,400,050,30G17CrMo9101.73790,13 to 0,200,600,50 to 0,900,0250,020b2,00to2,500,90 to 1,200,400,050,30G26CrMo41.72210,22 to 0,290,600,50 to 0,800,0250,020b0,80 to 1,200,15 to 0,300,400,050,30G34CrMo41.72300,30 to 0,370,600,50 to 0,800,0250,020b0,80 to 1,200,15 to 0,300,40
29、0,050,30G42CrMo41.72310,38 to 0,450,600,60 to 1,000,0250,020b0,80 to 1,200,15 to 0,300,400,050,30G30CrMoV641.77250,27 to 0,340,600,60 to 1,000,0250,020b1,30 to 1,700,30 to 0,500,400,05 to 0,150,30G35CrNiMo661.65790,32 to 0,380,600,60 to 1,000,0250,020b1,40to1,700,15 to 0,351,40to1,700,050,30G30NiCrM
30、o731.65720,28 to 0,330,600,60 to 0,900,0350,0300,70 to 0,900,20 to 0,301,65 to 2,000,050,30G40NiCrMo731.65730,38 to 0,430,600,60 to 0,900,0350,0300,70 to 0,900,20 to 0,301,65 to 2,000,050,30G32NiCrMo85-41.65700,28 to 0,350,600,60 to 1,000,0200,0151,00to1,400,30 to 0,501,60 to 2,100,050,30Singlevalue
31、sindicatemaximums.aCr+Mo+Ni+V+Cu max. 1,00%.bFor castings of ruling thickness680bG26CrMo4 1.7221 150 to 300 G34CrMo4 1.7230 G42CrMo4 1.7231 200 to 350G30CrMoV64 1.7725 bG35CrNiMo66 1.6579 400 G30NiCrMo73 1.6572 200 to 350 G40NiCrMo73 1.6573 G32NiCrMo85-4 1.6570 200 to 350 aThe preheating temperature
32、 is related to the geometry, the thickness of the casting and climatic conditions.bThe post weld heat treatment temperature shall be at least 20 C, but not more than 50 C below tempering temperature. ISO 2015 All rights reserved 7BS ISO 14737:2015ISO 14737:2015(E)Annex B (informative) UNS cast grade
33、s similar1)to ISO cast gradesTable B.1 UNS grades similar1)to ISO cast gradesGrade designation UNS number (similar grade)Name NumberGE200 1.0420 J03000GS200 1.0449 J02001GE240 1.0446 J03000GS240 1.0455 J02003GS270 1.0454 J02503GS 340 1.0467 J03003G28Mn6 1.1165 G28MnMo6 1.5433 G20Mo5 1.5419 G10MnMoV6
34、3 1.5410 G20NiCrMo22 1.6741 J12047, J12095G25NiCrMo22 1.6744 J12595G30NiCrMo22 1.6778 J13095G17CrMo55 1.7357 G17CrMo910 1.7379 G26CrMo4 1.7221 J13502G34CrMo4 1.7230 J14047, J23259G42CrMo4 1.7231 G30CrMoV64 1.7725 G35CrNiMo66 1.6579 G30NiCrMo73 1.6572 J23259G40NiCrMo73 1.6573 J24053G32NiCrMo85-4 1.65
35、70 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 (Unified Numbering System) grades may not be equivalent to the grades in this International Standard.8 ISO 2015 All rights reservedBS ISO 14737:2015ISO 14737:2015(E)Bib
36、liography1 ISO 3755, Cast carbon steels for general engineering purposes2 EN 10027-1, Designation system for steels Part 1: Steel names3 EN 10027-2, Designation system for steels Part 2: Steel numbers ISO 2015 All rights reserved 9BS ISO 14737:2015ISO 14737:2015(E) ISO 2015 All rights reservedICS 77
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