BS-TA-40-1971.pdf

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1、BRITISH STANDARD AEROSPACE SERIES BS TA 40:1971 (Superseding, in part, D.T.D. 5203) Specification for Bar for machining of titanium-aluminium- molybdenum-tin- silicon-carbon alloy (Tensile strength 12051375 N/mm2) (Limiting ruling section over 25 mm up to and including 75 mm) UDC 629.7:669.295.57128

2、6782784-422.2.018.23 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:02:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS TA 40:1971 This British Standard, having been approved by the Aerospace Industry Standards Committee, was published under the authority of

3、 the Executive Board of the Institution on 30 September 1971 BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference ACE/49 Draft for comment 67/20619 ISBN 0 580 06845 5 A British Standard does not purport to include all the necessary provisions of a contrac

4、t. 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 1 and a back cover. This stan

5、dard 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.DateComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09

6、 03:02:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS TA 40:1971 BSI 02-2000i Contents Page 1Inspection and testing procedure1 2Manufacture1 3Chemical composition1 4Condition1 5Heat treatment1 6Mechanical properties1 Licensed Copy: London South Bank University, London South Bank University, Sat De

7、c 09 03:02:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:02:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS TA 40:1971 BSI 02-20001 NOTEOther forms of material of this composition are covered by the fo

8、llowing British Standards: Tensile strength 1 2501 420 N/mm2: limiting ruling section 25 mm BS TA 38, Bar for machining. BS TA 39, Forging stock. Tensile strength 1 2051 375 N/mm2: limiting ruling section over 25 mm up to and including 75 mm BS TA 41, Forging stock. BS TA 42, Forgings. 1 Inspection

9、and testing procedure This British Standard shall be used in conjunction with Sections 1 and 2 of BS TA 100. 2 Manufacture The material shall be made from ingots produced by consumable electrode melting. 3 Chemical composition The chemical composition of the material shall be: 4 Condition Unless oth

10、erwise stated on the order or Inspection Schedule, the material shall be supplied fully heat treated and either centreless ground or machined. 5 Heat treatment The material and test samples shall be heat treated as follows: 1) heat at a temperature of 900 10 C and hold for one hour per 25 mm of sect

11、ion, with a minimum of 20 min; 2) cool in air; 3) heat at a temperature of 500 5 C and hold for 24 h; 4) cool in air. 6 Mechanical properties 6.1 Tensile test. The mechanical properties obtained from test pieces selected, prepared and tested in accordance with the relevant requirements of BS TA 100

12、shall be: Element % min.max. Aluminium Molybdenum Tin Silicon Iron Hydrogen Oxygen Nitrogen Carbon Titanium 3.0 3.0 3.0 0.3 0.05 5.0 5.0 5.0 0.7 0.20 0.0125 0.25 0.05 0.20 Remainder 0.2 % proof stress Tensile strengthElongation Reduction of area min.min.max.min.min. N/mm2N/mm2N/mm2% 1 0651 2051 3758

13、20 NOTE1 N/mm2= 1 MN/m2= 0.102 kgf/mm2= 0.1 hbar = 0.065 tonf/in2. Information on SI units is given in BS 3763, “The International System of units (SI)” and BS 350, “Conversion factors and tables”. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:02:04 GMT+00:

14、00 2006, Uncontrolled Copy, (c) BSI BS TA 40:1971 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 incorpor

15、ated 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 constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone

16、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 cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS

17、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: 020 8996 9001. Fax: 020 8996 7001. In response to orders for international stand

18、ards, 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 international standards through its Library and its Technical Help t

19、o 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: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive subs

20、tantial 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 subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the internati

21、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

22、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: 020 8996 7070. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:02:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI

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