1、BRITISH STANDARD AEROSPACE SERIES BS 2S 510:1970 (Superseding BS S 510) Incorporating Amendments Nos. 1 and 2 Specification for carbon steel sheet and strip (430/540 MPa) (suitable for welding) UDC 629.7:669.14.018.296 41:621.791 This Standard is obsolescent. See the BSI Catalogue for detailsBS 2S 5
2、10:1970 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 28 August 1970 BSI 30 May 2003 The following BSI references relate to the work on this standard: Committee reference ACE/1
3、5 Draft for comment 69/17094 ISBN 0 580 06183 3 Amendments issued since publication Amd. No. Date Comments 889 March 1972 14158 30 May 2003 Indicated by a sidelineBS 2S 510:1970 BSI 30 May 2003 i Contents Page Foreword ii 1 Inspection and testing procedure 1 2 Process of manufacture 1 3 Chemical com
4、position 1 4 Surface dressing 1 5 Condition 1 6 Final heat treatment 1 7 Mechanical properties 2BS 2S 510:1970 ii BSI 30 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 Bri
5、tish 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 document indicates when the documen
6、t was last issued. Sidelining in this document indicates the most recent changes by amendment.BS 2S 510:1970 BSI 30 May 2003 1 1 Inspection and testing procedure 1.1 This British Standard shall be used in conjunction with the latest edition of BS S 500. 1.2 The thickness of the material shall be in
7、accordance with the latest edition of BS S 500. Material which has been finally hot-rolled prior to softening shall satisfy the tolerances applicable to hot-rolled mild steel sheet and strip. Material which has been finally cold-rolled prior to softening shall satisfy the tolerances applicable to co
8、ld-rolled mild steel 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 oxygen, open hearth or electric process, unless otherwise agreed between th
9、e manufacturer and the purchaser in accordance with the latest edition of 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 material shall be suppl
10、ied in the softened condition after final hot or cold rolling. 5.2 Unless otherwise agreed the method of rolling shall be at the option of the manufacturer but shall be stated in the release note. 6 Final heat treatment Softening shall be carried out by heating at a temperature not less than 600 C a
11、nd cooling in a suitable manner. Element % Min. Max. Carbon 0.17 0.25 Silicon 0.10 0.35 Manganese 0.4 0.8 Phosphorous 0.040 Sulphur 0.040 Chromium 0.25 Molybdenum 0.10 Nickel 0.30BS 2S 510:1970 2 BSI 30 May 2003 7 Mechanical properties The mechanical properties obtained from test pieces selected and
12、 prepared in accordance with the relevant requirements of the latest edition of BS S 500 shall comply with the following. 1) Tensile test. The values in MN/m 2are to be regarded as the standard. 2) Hardness test. The hardness of the material shall be: 121 min./163 max. HB; or 125 min./170 max. HV. 3
13、) Single bend test. 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 sheet or strip. 0.2 % proof stress Tensile strength Elongation on thickness Less than 1.6 mm 1.6 mm and over MPa MPa % min. min. max. min.
14、min. 255 430 540 18 20blankBS 2S 510:1970 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
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