1、BRITISH STANDARD AEROSPACE SERIES BSS 161:1990 Specification for Chromium-nickel- molybdenum corrosion- resisting steel bright bars and parts (540 MPa, limiting ruling section 160 mm)(Cr17.5, Ni12.5, Mo2.25, controlled nitrogen content)BS S161:1990 This British Standard, having been prepared under t
2、he directionof the Aerospace Standards Policy Committee waspublished under the authorityof the Board of BSI andcomes into effect on 28September 1990 BSI 02-2000 The following BSI references relateto the work on this standard: Committee reference ACE/15 Draft for comment 88/70356 DC ISBN 0 580 18045
3、X Committees responsible for this BritishStandard The preparation of this British Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/15, upon which the following bodies were represented: British Forging Industry Association British Independent Steel
4、 Producers Association British Industrial Fasteners Federation British Investment Casting Trade Association British Steel Industry British Steel Industry (Wire Section) Civil Aviation Authority (Airworthiness Division) Institute of British Foundrymen Ministry of Defence National Association of Steel
5、 Stockholders Rolls-Royce Ltd. Seamless Steel Tube Association Society of British Aerospace Companies Ltd. Steel Casting Research and Trade Association Amendments issued since publication Amd. No. Date of issue CommentsBS S161:1990 BSI 02-2000 i Contents Page Committees responsible Inside front cove
6、r Foreword ii 1 Scope 1 2 References 1 3 Technical requirements 1BS S161:1990 ii BSI 02-2000 Foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee. It is presented in tabular format. A British Standard does not purport to include all the nec
7、essary 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, pages i and ii, page
8、s1 and 2 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.BS S161:1990 BSI 02-2000 1 1 Scope This standard specifies the characteristics of a low-carbon chromium-nic
9、kel-molybdenum austenitic corrosion-resisting steel with controlled nitrogen content (iron base, Cr17.5, Ni12.5, Mo2.25,N) supplied as bright bars or parts for general aerospace use. 2 References This standard makes reference to the following publications BS S 100, Procedure for inspection and testi
10、ng of wrought steels (other than sheet, strip and tubes). BS EN 2500, Guidelines for the preparation and use of standards for metallic materials 1) . 3 Technical requirements The technical requirements for material to this standard shall comply with those specified in the table. All material supplie
11、d shall comply with the requirements appropriate to its dimensions and condition as specified in the standard given in line 5 of the table. Symbols and units in the tables shall be interpreted in accordance with BS 5775, BS 5555 or BSEN2500. 1) In preparation.BS S 161:1990 2 BSI 02-2000 1 Chemical c
12、omposition Element C Si Mn P S Cr Mo Ni N Fe minimum 16.5 2.00 11.0 Base % maximum 0.030 1.00 2.00 0.040 0.030 18.5 3.00 14.0 0.10 2 1 2 3 Method of melting Melted by an electric process 4 Form Method of production Limit dimensions Bars, bright forged or rolled; cold drawn, cold rolled, machined or
13、ground D eu 160 mm 5 Acceptance standards BS S100, Sections 1 and 3 6 Condition of Use and Heat treatment prior to delivery Softened 1 000 C u 0 u 1 100 C/OQ or WQ or AC 7 Condition of supply and Heat treatment required for use As condition of supply 8 Test piece Heat treatment Sampling As condition
14、 of supply 9 Dimensions concerned D e mm u 160 11 Direction of sample Longitudinal 12 Tensile Temperature 0 C Ambient temperature 13 Proof stress Rp 0.2 MPa W 210 14 Strength Rm MPa W 540 15 Elongation A % W 35 17 Hardness HB u 183 or HV u 1903 blankBS S 161:1990 BSI 389 Chiswick High Road London W4
15、 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Us
16、ers 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 would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secreta
17、ry 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 service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying stand
18、ards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStand
19、ards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on
20、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 receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership
21、 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 international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be r
22、eproduced, 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 does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and si
23、ze, 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.
