《BS-5L-44-1985.pdf》由会员分享，可在线阅读，更多相关《BS-5L-44-1985.pdf（8页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD AEROSPACE SERIES BS 5L 44:1985 (Superseding BS 4L 44) Specification for Forging stock, bars, extruded sections and forgings of aluminium-2! % magnesium alloy UDC 629.7:669.715721-126 + 669.715721-134 + 669.715721-412 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:37:44 GM
2、T+00:00 2006, Uncontrolled Copy, (c) BSI BS 5L 44:1985 This British Standard, having been prepared under the direction of the Aerospace Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 December 1985 BSI 02-2000 The following BSI references relate
3、 to the work on this standard: Committee reference ACE/24 Draft for comment 81/77624 DC ISBN 0 580 14822 X Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Aerospace Standards Committee (ACE/-) to Technical Committee ACE/24 upon which the
4、 following bodies were represented: Aluminium Federation Aluminium Stockholders Association Association of Light Alloy Refiners Limited BNF Metals Technology Centre British Forging Industry Association British Industrial Fasteners Federation British Investment Casting Trade Association Institute of
5、British Foundrymen Light Metal Founders Association Magnesium Industry Council Ministry of Defence Society of British Aerospace Companies Limited Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:37:44 GMT+00:00 2006, Uncontro
6、lled Copy, (c) BSI BS 5L 44:1985 BSI 02-2000i Contents Page Committees responsibleInside front cover 1Inspection and testing procedure1 2Quality of material1 3Chemical composition1 4Condition1 5Heat treatment1 6Mechanical properties1 Publication referred toInside back cover Licensed Copy: sheffieldu
7、n sheffieldun, na, Mon Dec 04 13:37:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5L 44:1985 ii BSI 02-2000 NOTE 1Other forms of material of the same composition are covered by the following British Standards: BS L 56, Tube (Temper designation 0) (Seamless: tested hydraulically). BS L 80, Sheet a
8、nd strip (Temper designation 0). BS L 81, Sheet and strip (Temper designation H16 or H26). NOTE 2The chemical composition of this material complies with that registered as International Designation 5251. NOTE 3The title of the publication referred to in this standard is listed on the inside back cov
9、er. A British Standard does not purport to include all the 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 compri
10、ses a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover 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. Licensed Copy: sheffi
11、eldun sheffieldun, na, Mon Dec 04 13:37:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5L 44:1985 BSI 02-20001 1 Inspection and testing procedure This British Standard shall be used in conjunction with the relevant sections of the latest issue of BS L 100. 2 Quality of material The material shall
12、be made from aluminium of the chemical composition specified in clause 3, with or without approved scrap at the discretion of the manufacturer. 3 Chemical composition The chemical composition of the material shall be: 4 Condition 4.1 Forging stock. Cast billets and slabs for hot working and extruded
13、 bars, sections and hot-rolled plate for forging shall be supplied non-heat-treated. 4.2 Bars and extruded sections. Bars for machining and extruded sections shall be supplied in one of the following conditions: 1) extruded or 2) extruded and drawn or 3) rolled and drawn and subsequently straightene
14、d. NOTEThe material may be annealed before or after straightening. 4.3 Forgings. Unless otherwise agreed in accordance with BS L 100, forgings shall be supplied as forged or annealed. 5 Heat treatment None. 6 Mechanical properties 6.1 Tensile test. The mechanical properties obtained from test pieces
15、 selected and prepared in accordance with the relevant requirements of BS L 100 shall be not less than the following values: Element% min.max. Silicon Iron Copper Manganese Magnesium Chromium Zinca Titaniuma Others: each Others: total Aluminium 0.10 1.70 0.40 0.50 0.15 0.50 2.40 0.15 0.15 0.15 0.05
16、0.15 Remainder a Subject to the discretion of the Quality Assurance Authority, determination of these elements need be made on a small proportion only of the samples analysed. 0.2 % proof stressTensile strength Elongation on gauge length of 50 mm5.65 S0 MPaMPa% 601701416 Licensed Copy: sheffieldun s
17、heffieldun, na, Mon Dec 04 13:37:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 blank Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:37:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5L 44:1985 BSI 02-2000 Publication referred to BS L 100, Procedure for inspection and testing of wrough
18、t aluminium and aluminium alloys. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:37:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5L 44:1985 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British
19、 Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the
20、 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 British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cove
21、r. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service 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
22、 Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. 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 i
23、nformation 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 all its products and services. Contact the Information Centre. Tel: 020 8996 7111. Fax: 0
24、20 8996 7048. 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: 020 8996 7002. Fax: 020 8996 7001. Copyright Copyright subsis
25、ts 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 reproduced, stored in a retrieval system or transmitted in any form or by any
26、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 size, type or grade designations. If these details are to be used for any other
27、 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: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:37:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI