BS-S-535-1969.pdf
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1、BRITISH STANDARD AEROSPACE SERIES BS S 535:1969 (Superseding BS S 519) Incorporating Amendment No. 1 Specification for chromium-molybdenum steel sheet and strip (1 150/1 300 MPa) (suitable for welding) UDC 629.7:669.152628 194 41 ? Licensed Copy: London South Bank University, London South Bank Unive
2、rsity, Sat Dec 09 03:06:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS S 535:1969 This British Standard, having been approved by the Aerospace Industry Standards Committee was published under the authority of the Executive Board of the Institution on 30 May 1969 BSI 27 May 2003 The following BSI r
3、eferences relate to the work on this standard: Committee reference ACE/15 Draft for comment 67/13801 ISBN 0 580 05419 5 Amendments issued since publication Amd. No.DateComments 1414527 May 2003Indicated by a sideline Licensed Copy: London South Bank University, London South Bank University, Sat Dec
4、09 03:06:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS S 535:1969 BSI 27 May 2003 i Contents Page Forewordii 1Inspection and testing procedure1 2Process of manufacture1 3Chemical composition1 4Surface dressing1 5Condition1 6Final heat treatment1 7Decarburization2 8Mechanical properties2 Licensed
5、Copy: London South Bank University, London South Bank University, Sat Dec 09 03:06:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS S 535:1969 ii BSI 27 May 2003 Foreword This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct ap
6、plication. 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, pages 1 and 2, an inside back cover and a back cover. The BSI copyright notice displayed in this doc
7、ument indicates when the document was last issued. Sidelining in this document indicates the most recent changes by amendment. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:06:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS S 535:1969 BSI 27 May 2003 1 NOT
8、ESheet and strip of the same composition at a lower strength level are covered by the latest edition of BS S 534. 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
9、shall be in accordance with the latest edition of BS S 500. Material which has been finally hot rolled prior to softening or hardening and tempering shall satisfy the tolerances applicable to hot-rolled sheet and strip. Material which has been finally cold rolled prior to softening or hardening and
10、tempering shall satisfy the tolerances applicable to cold-rolled sheet and strip. 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 electric process, unless otherw
11、ise agreed between the manufacturer 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 overall dressed in accordance with the requirements of the latest edition of BS S 500. 5 Condition 5.1 The
12、 material shall be supplied in one of the following conditions after 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 th
13、e release note. 5.3 Finished parts shall be supplied finally heat treated. 6 Final heat treatment The final heat treatment shall be: 1) Harden in oil or water from a temperature of 870 10 C. 2) Temper at a temperature of not less than 350 C. Element% min.max. Carbon0.220.29 Silicon0.150.35 Manganese
14、0.500.80 Phosphorus0.020 Sulphur0.015 Chromium0.901.20 Molybdenum0.150.25 Nickel0.30 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:06:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS S 535:1969 2 BSI 27 May 2003 7 Decarburization The decarburization determi
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