1、BRITISH STANDARD AEROSPACE SERIES CONFIRMED JULY1982 BSHC 103:1974 Incorporating Amendment No.1 Specification for 23%chromium-nickel- tungsten corrosion-resisting steel castings (Cr23, Ni11, W3) UDC629.7:669.1526242714:669.14.018.8BSHC103:1974 This BritishStandard, having been approved by the Aerosp
2、aceIndustry StandardsCommittee, waspublished under theauthorityofthe ExecutiveBoardon 10 May1974 BSI02-2000 The following BSI references relate to the work on this standard: Committee reference ACE/60 Draft for comment72/35126DC ISBN 0 580 08412 4 A British Standard does not purport to include all t
3、he necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii,
4、page1 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date of issue Comments 3846 May1982 Indicated by a sideline in t
5、he marginBSHC103:1974 BSI 02-2000 i Contents Page 1 Inspection and testing procedure 1 2 Chemical composition 1 3 Condition 1 4 Heat treatment 1 5 Ferrite content 1 6 Rectification of defects 1ii blankBSHC103:1974 BSI 02-2000 1 1 Inspection and testing procedure This BritishStandard shall be used in
6、 conjunction with the relevant sections of the latest issue of BS HC100 as follows: 2 Chemical composition The re-melting stock and castings shall contain: 3 Condition Castings shall be supplied in the heat treated condition. 4 Heat treatment Heat treatment shall consist of solution treatment by hea
7、ting uniformly at a temperature between1000 C and1100 C for2h and cooling in a suitable manner. 5 Ferrite content Where it is considered necessary to assist weldability and it is specified by the purchaser, the ferrite content of each melt shall be assessed. The method of assessment shall be agreed
8、with the purchaser and the ferrite content shall be between3% and10%. 6 Rectification of defects 6.1 Correction of distortion. When permitted in accordance with BS HC100, correction of distortion shall be carried out after solution treatment. 6.2 Repair of castings by welding. When repair by welding
9、 is permitted in accordance with BS HC100, castings shall subsequently be solution treated. Re-melting stock Sections1 and2 Precision castings Sections 1 and3 Sand castings Sections1 and4 Centrifugal castings Sections1 and5 Element % min. max. Carbon Silicon Manganese Phosphorus Sulphur Chromium Nic
10、kel Tungsten 0.5 20.0 10.0 2.0 0.25 2.0 1.0 0.04 0.04 25.0 13.0 3.5BS HC 103:1974 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the interna
11、tional level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards 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 wo
12、uld be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating s
13、ervice called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel:02089969001. Fax:02089967001. In response to orders for intern
14、ational standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Tech
15、nical 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:02089967111. Fax:02089967048. Subscribing members of BSI are kept up to date with standards developments and receiv
16、e substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the internati
17、onal 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 written permission from BSI. This do
18、es 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. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.
