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1、BRITISH STANDARD AEROSPACE SERIES BS L 113:1971 (Superseding D.T.D. 5080) Specification for Sheet and strip of aluminium-magnesium- silicon-manganese alloy (Solution treated and precipitation treated) (Suitable for welding) (Mg 0.8, Si 1, Mn 0.7) UDC 629.7:669.71578272174-41 Licensed Copy: London So
2、uth Bank University, London South Bank University, Sat Dec 09 02:55:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS L 113:1971 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
3、 September 1971 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/24 Draft for comment 70/19819 ISBN 0 580 06785 8 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible
4、 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 standard has been updated (see copyright date) an
5、d 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 02:55:45 GMT+00:00 2006, Uncontrolled Copy,
6、(c) BSI BS L 113:1971 BSI 01-2000i Contents Page 1Inspection and testing procedure1 2Quality of material1 3Chemical composition1 4Condition1 5Heat treatment1 6Mechanical properties1 7Identification1 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:55:45 GMT+00
7、:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:55:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS L 113:1971 BSI 01-20001 NOTEOther forms of material of similar composition and in the same heat treatment conditi
8、on are covered by the following British Standards: BS L 111, Bars and extruded sections. BS L 112, Forging stock and forgings. BS L 114, Tube. BS L 115, Plate (controlled stretched). 1 Inspection and testing procedure This British Standard shall be used in conjunction with Sections 1 and 9 of BS L 1
9、00. 2 Quality of material The material shall be made from aluminium and alloying constituents, with or without approved scrap, at the discretion of the manufacturer. 3 Chemical composition The chemical composition of the material shall be: 4 Condition Unless otherwise agreed in accordance with BS L
10、100, Section 9, the material shall be supplied solution treated, flattened and subsequently precipitation treated. 5 Heat treatment The material shall be heat treated as follows: 1) Solution treat by heating uniformly at a temperature between 510 C and 540 C and quenching in water. 2) Precipitation
11、treat by heating uniformly at a temperature between 165 C and 195 C for 3 hours to 12 hours. 6 Mechanical properties 6.1 Tensile test. The mechanical properties obtained from test pieces selected and prepared in accordance with the relevant requirements of BS L 100 shall be not less than the followi
12、ng values: 6.2 Hardness test. The value of X shall be as shown in the following table: 7 Identification The requirements relating to “all over” marking in BS L 100, Section 9, shall apply. Element % min.max. Copper0.10 Magnesium0.51.2 Silicon0.71.3 Iron0.5 Manganese0.41.0 Nickela0.10 Zinca0.2 Leada0
13、.05 Tina0.05 Titanium and/or other grain refining elementsa0.2 Chromiuma0.25 AluminiumThe remainder a Subject to the discretion of the Inspecting Authority, determination of these elements need be made on a small proportion only of the samples analysed. Nominal thickness 0.2 % proof stress Tensile s
14、trength Elongation on gauge length of 50 mm mmN/mm2N/mm2% 0.2 up to and including 3.02552958 Over 3.0 up to and including 6.02402958 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, “Con
15、version factors and tables”. Tensile strength of test pieceValue of X N/mm2% 295 to less than 3105 310 to less than 3257.5 325 and over10 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:55:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS L 113:1971 BSI 389 Ch
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23、opyright, 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 does not preclude the free use, in the course of implementing
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