BS S 150-1975 Specification for chromium-molybdenum-vanadium-niobium heat-resisting steel billets bars forgings and parts (930-1080 MPa) (Cr 10 5 Mo 0 6 V 0 2 Nb 0 3)《铬-钼-钒-铌-耐热钢坯、棒材、锻件及零件规范(930-.pdf

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1、BRITISH STANDARD AEROSPACE SERIES CONFIRMED AUGUST 1985 BS S 150:1975 (Superseding BS HR 54) Incorporating Amendments Nos. 1 and 2 Specification for Chromium molybdenum vanadiumniobium heat-resisting steel billets, bars, forgings and parts (930 1 080 MPa) (Cr 10.5, Mo 0.6, V 0.2, Nb 0.3) ICS 49.025.

2、10 BS S 150:1975 This British Standard, having been approved by the Aerospace Industry Standards Committee, was published under the authority of the Executive Board on 30 September 1975 BSI 24 February 2004 The following BSI references relate to the work on this standard: Committee reference ACE/15

3、Draft for comment 73/32574 DC ISBN 0 580 08760 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee ACE/15, Wrought and cast steels for aerospace, upon which the following bodies were represented: Civil Aviation Authority Ai

4、rworthiness Cast Metals Federation Confederation of British Metalforming Institute of Spring Technology MoD UK Defence Standardization Society of British Aerospace Companies Ltd. UK Steel Association Co Opted Member Summary of pages This document comprises a front cover, an inside front cover, pages

5、 i and ii, pages 1 and 2, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Sidelining in this document indicates the most recent changes by amendment. Amendments issued since publication Amd. No. Date Comments 518

6、2 September 1986 14819 24 February 2004 Indicated by a sidelineBS S 150:1975 BSI 24 February 2004 i Contents Page Committees responsible Inside front cover 1 Inspection and testing procedure 1 2 Manufacture 1 3 Chemical composition 1 4 Surface dressing 1 5 Condition 2 6 Heat treatment 2 7 Mechanical

7、 properties 2ii blankBS S 150:1975 BSI 24 February 2004 1 NOTE The specified heat treatment and tensile and stress rupture properties comply with AECMA Recommendation FE PM 36 for material heat treated to a strength of 930/1 080 MPa. The specified chemical composition complies with current practice

8、in the United Kingdom and is similar to that given in FE PM 36. 1 Inspection and testing procedure 1.1 General This British Standard shall be used in conjunction with the relevant sections of the latest issue of BS S 100 as follows: 1.2 Sulfur printing or deep etching tests One sample shall be taken

9、 from each ingot for sulfur printing or deep etching tests. 1.3 Ultrasonic examination The material shall be ultrasonically tested in accordance with the latest issue of BS S 100, Annex B. 2 Manufacture The material shall be manufactured by an electric process. 3 Chemical composition The steel shall

10、 contain: 4 Surface dressing The material shall be overall dressed. Bars for machining delivered in the finally heat treated condition Sections 1 and 3 Forging stock and billets and bars for subsequent working Sections 1 and 5 Forgings Sections 1 and 6 Parts finally heat treated after machining Sect

11、ions 1 and 7 Element % min. max. Carbon 0.08 0.16 Silicon 0.15 0.60 Manganese 0.3 1.2 Phosphorus 0.030 Sulphur 0.025 Chromium 9.8 11.2 Molybdenum 0.4 0.8 Niobium 0.15 0.45 Nickel 0.6 1.2 Vanadium 0.10 0.25 Nitrogen 0.030 0.075BS S 150:1975 2 BSI 24 February 2004 5 Condition 5.1 The material shall be

12、 supplied in the appropriate condition stated below: 5.2 Parts shall be supplied finally heat treated. 6 Heat treatment 6.1 Softening treatment The material shall be softened by heating uniformly at a temperature of not less than 690 C for not less than 2 h, followed by cooling in air. 6.2 Final hea

13、t treatment 6.2.1 The material, parts and test samples shall be heat treated as follows: a) Hardening. Pre-heat to a temperature between of 650C and 700 C and equalize. Heat at a temperature of 1 150 10 C, followed by cooling in oil or air. b) Tempering. Heat uniformly at a temperature between of 65

14、0 C and 700 C for not less than 2 h, followed by cooling in air. 6.2.2 Where bars delivered in the finally heat treated condition have been subjected to a cold straightening or cold rolling operation, they may be given a stress relieving treatment, which shall be sufficient to restore the proof stre

15、ss. 7 Mechanical properties 7.1 Tensile test at room temperature The mechanical properties obtained from test pieces shall be as follows: Note deleted 7.2 Hardness test 7.2.1 The hardness of material heat treated in accordance with 6.1 shall be not greater than 277 HB or 295 HV. 7.2.2 The hardness o

16、f material, parts and test samples heat treated in accordance with 6.2 shall be: 285 min./331 max. HB; or 290 min./345 max. HV. Designation Form Condition of supply S150B Black bars for machining Finally heat treated S150D Bright bars for machining Finally heat treated before or after cold drawing o

17、r cold rolling or machining or grinding S150A Forging stock and billets and bars for subsequent working Softened S150C Forgings Softened and finally heat treated 0.2 % proof stress Tensile strength Elongation Reduction of area min. min. max. min. min. MPa MPa MPa % % 780 930 1 080 10 40blankBS S 150

18、:1975 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Sta

19、ndards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while usi

20、ng this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers a

21、utomatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI webs

22、ite at http:/www.bsi-. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and

23、international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: info

24、bsi-. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-.

25、 Information regarding online access to British Standards via British Standards Online can be found at http:/www.bsi- Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the

26、 publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior writte

27、n permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.

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