BS-S-536-1970.pdf
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1、BRITISH STANDARD AEROSPACE SERIES BS S 536:1970 (Superseding Ministry of Technology Specification D.T.D. 712A) Incorporating Amendment No. 1 Specification for low carbon 18/10 chromium-nickel corrosion-resisting steel sheet and strip (500 MPa) UDC 629.7:669.152624:669.14.018.8-41 ? Licensed Copy: Lo
2、ndon South Bank University, London South Bank University, Sat Dec 09 03:06:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS S 536:1970 This British Standard, having been approved by the Aerospace Industry Standards Committee, was published under the authority of the Executive Board of the Institutio
3、n on 27 January 1970 BSI 27 May 2003 The following BSI references relate to the work on this standard: Committee reference ACE/15 Draft for comment 69/2003 ISBN 0 580 05885 9 Amendments issued since publication Amd. No.DateComments 1414427 May 2003Indicated by a sideline Licensed Copy: London South
4、Bank University, London South Bank University, Sat Dec 09 03:06:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS S 536:1970 BSI 27 May 2003 i Contents Page Forewordii 1Inspecting and testing procedure1 2Process of manufacture1 3Chemical composition1 4Surface dressing1 5Condition1 6Final heat treatme
5、nt1 7Mechanical properties1 8Intercrystalline corrosion test2 9Microscopic examination for freedom from surface contamination2 10Retests2 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 536:1970 ii BSI 27
6、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 front
7、 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. Licensed Copy: London Sout
8、h Bank University, London South Bank University, Sat Dec 09 03:06:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS S 536:1970 BSI 27 May 2003 1 1 Inspecting 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
9、The thickness of the material shall be in 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 sheet and strip. Material which has been finally cold rolled prior to softening shall satisfy
10、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 otherwise agreed between the ma
11、nufacturer 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 The material shall be supplied i
12、n the softened condition. 6 Final heat treatment Softening shall be carried out by heating at a temperature between 1 000 C and 1 100 C and cooling in air or quenching in oil or water. 7 Mechanical properties The mechanical properties obtained from test pieces selected and prepared in accordance wit
13、h the relevant requirements of the latest edition of BS S 500 shall comply with the following: 1) Tensile test. 2) Hardness test. The hardness of the material shall be not more than 170 HB or 180 HV. 3) Single bend test. The test piece shall be bent cold without cracking through an angle of 180 and
14、closed flat. Element% min.max. Carbon0.030 Silicon0.21.0 Manganese0.52.0 Phosphorus0.035 Sulphur0.025 Chromium17.519.0 Nickel9.012.0 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 536:1970 2 BSI 27 May 20
15、03 8 Intercrystalline corrosion test 8.1 A bend test piece shall be selected by the inspector to represent each batch. The test piece shall be heated for 30 minutes at a temperature of 650 10 C and cooled in air. It shall then be immersed for 72 hours in a boiling solution having the following compo
16、sition: 111 g copper sulphate crystals (CuSO45H2O). 98 g concentrated sulphuric acid (specific gravity 1.84) made up to 1 litre with distilled water. Precautions shall be taken during boiling to prevent concentration due to evaporation. 8.2 The test piece treated in accordance with 8.1 shall then be
17、 subjected to, and meet the requirements of, the single bend test in accordance with, Clause 7, 3). 9 Microscopic examination for freedom from surface contamination 9.1 Sample selection 1) Sheet and strip. The inspector shall select one sample from each of 10 % of the sheets or strips from each batc
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