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本文(BS 2S 513-1970 Specification for spring steel strip《弹簧钢带材规范》.pdf)为本站会员(ownview251)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

BS 2S 513-1970 Specification for spring steel strip《弹簧钢带材规范》.pdf

1、BRITISH STANDARD AEROSPACE SERIES BS 2S 513:1970 (Superseding BS S 513) Incorporating Amendment No. 1 Specification for spring steel strip UDC 629.7:669.14.018.27 418 BS 2S 513:1970 This British Standard, having been approved by the Aerospace Industry Standards Committee, was published under the aut

2、hority of the Executive Board of the Institution on 30 October 1970 BSI 30 May 2003 The following BSI references relate to the work on this standard: Committee reference ACE/15 Draft for comment 69/33644 ISBN 0 580 06194 9 Amendments issued since publication Amd. No. Date Comments 14156 30 May 2003

3、Indicated by a sidelineBS 2S 513:1970 BSI 30 May 2003 i Contents Page Foreword ii 1 Inspection and testing procedure 1 2 Process of manufacture 1 3 Chemical composition 1 4 Surface dressing 1 5 Condition 1 6 Final heat treatment 1 7 Decarburization 2 8 Mechanical properties 2BS 2S 513:1970 ii BSI 30

4、 May 2003 Foreword This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a fron

5、t cover, an inside front cover, pages 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.BS 2S 513:1970 BSI 30 May

6、2003 1 1 Inspection and testing procedure 1.1 This British Standard shall be used in conjunction with the relevant sections of the latest edition of BS S 500. 1.2 The thickness of the material shall be in accordance with the latest edition of BS S 500. Material which has been finally hot-rolled prio

7、r to softening or hardening and tempering shall satisfy the tolerances applicable to hot-rolled steel sheet or strip (excluding mild steel). Material which has been finally cold-rolled prior to softening or hardening and tempering shall satisfy the tolerances applicable to cold-rolled steel sheet an

8、d strip (excluding mild steel). 1.3 Sulphur printing or deep etching tests. Samples shall be selected in accordance with the latest edition of BS S 500. 2 Process of manufacture The material shall be manufactured by an oxygen, open hearth or electric process, unless otherwise agreed between the manu

9、facturer and the purchaser in accordance with the latest edition of BS S 500. 3 Chemical composition The steel shall contain: 4 Surface dressing The material shall be locally dressed in accordance with the requirements of the latest edition of BS S 500. 5 Condition 5.1 The materials shall be supplie

10、d in one of the following conditions after final hot or cold rolling. 1) Softened. 2) Hardened and tempered. 5.2 The condition required shall be stated on the order. Unless otherwise agreed the method of rolling shall be at the option of the manufacturer, but shall be stated in the release note. 5.3

11、 Finished parts shall be supplied finally heat-treated. 6 Final heat treatment The final heat treatment shall be as follows. 1) Harden by cooling in a suitable manner from a temperature not exceeding 860 C. 2) Temper at a suitable temperature to give the specified mechanical properties. Element % mi

12、n. max. Carbon 0.70 0.90 Silicon 0.10 0.35 Manganese 0.35 0.90 Phosphorus 0.040 Sulphur 0.040BS 2S 513:1970 2 BSI 30 May 2003 7 Decarburization The decarburization determined in accordance with the latest edition of BS S 500 shall be not more than 0.04 mm (0.0015 in). 8 Mechanical properties 8.1 The

13、 mechanical properties obtained from test pieces selected and prepared in accordance with the relevant requirements of the latest edition of BS S 500 shall comply with the following. 8.1.1 Tests in the softened condition 1) Hardness. The hardness of the material shall be not more than 220 HV. 2) Sin

14、gle bend test a) Strip 1.25 mm (0.049 in) or thinner. The test piece shall be bent without cracking through an angle of 180 over a former with a radius equal to half the nominal thickness of the strip. b) Strip thicker than 1.25 mm (0.049 in). The test piece shall be bent without cracking through an

15、 angle of 180 over a former with a radius equal to the nominal thickness of the strip. 8.1.2 Tests in the hardened and tempered condition 1) Hardness. The hardness of the material shall be: 400 min./500 max. HV. 2) Single bend test a) Strip 1.25 mm (0.049 in) or thinner. The test piece shall be bent

16、 without cracking through an angle of 90 over a former with a radius equal to five times the nominal thickness of the strip. b) Strip thicker than 1.25 mm (0.049 in). The test piece shall be bent without cracking through an angle of 90 over a former with a radius equal to six times the nominal thick

17、ness of the strip.blankBS 2S 513:1970 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 Roya

18、l 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 finding an i

19、naccuracy 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: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS

20、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: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are

21、also available from the BSI website 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 inform

22、ation 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: +44 (0)20 8996 7111. Fax:

23、+44 (0)20 8996 7048. Email: infobsi-. 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 8

24、996 7001. Email: membershipbsi-. 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

25、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 means electronic, photocopying, recording o

26、r 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 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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