1、BRITISH STANDARD AEROSPACE SERIES BS L 117:1975 Incorporating Amendment No. 1 Specification for Tube of aluminium- magnesium-silicon- copper-chromium alloy (Solution treated and artificially aged: not tested hydraulically) (Not exceeding 10 mm thickness) (Mg 1.0, Si 0.6, Cu 0.28, Cr 0.2) UDC 629.7:6
2、69.715721782326 462 153.71 157.84BSL117:1975 This British Standard, having been approved by the AerospaceIndustry Standards Committee, was published underthe authority of the Executive Board on 30May1975 BSI 01-2000 The following BSI references relate to the work on this standard: Committee referenc
3、e ACE/24 Draft for comment 73/35606 DC ISBN 0 580 08932 0 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from le
4、gal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 3 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside fro
5、nt cover. Amendments issued since publication Amd. No. Date of issue Comments 3827 March 1982 Indicated by a sideline in the marginBSL117:1975 BSI 01-2000 i Contents Page 1 Inspection and testing procedure 1 2 Quality of material 1 3 Chemical composition 1 4 Condition 1 5 Heat treatment 1 6 Mechanic
6、al properties 2 7 Tolerances 2 Table 1 Tolerances on thickness 2 Table 2 Tolerances on outside or inside diameters of drawn round tube 3ii blankBSL117:1975 BSI 01-2000 1 NOTE 1Tube of similar composition, in the same heat treatment condition and tested hydraulically is covered by BSL118. NOTE 2The c
7、hemical composition of this material complies with that registered as International Designation6061. 1 Inspection and testing procedure This British Standard shall be used in conjunction with sections 1 and 11 of the latest issue of BSL100, except as specified in6.2 and clause7 below. 2 Quality of m
8、aterial 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 The material shall be supplied solution treated and artificially ag
9、ed. 5 Heat treatment The material shall be heat treated as follows: a) solution treat by heating uniformly at a temperature between510 C and540 C and quenching in water at a temperature not exceeding40 C; b) artificially age by heating uniformly at a temperature between165 C and195 C for3h to12h. El
10、ement % min. max. Silicon 0.40 0.8 Iron 0.7 Copper 0.15 0.40 Manganese 0.15 Magnesium 0.8 1.2 Chromium 0.04 0.35 Zinc a 0.25 Titanium a 0.15 Others: each a 0.05 Others: total a 0.15 Aluminium Remainder a Subject to the discretion of the Inspecting Authority, determination of these elements need be m
11、ade on a small proportion only of the samples analysed.BSL117:1975 2 BSI 01-2000 6 Mechanical properties 6.1 Tensile test. The mechanical properties obtained from test pieces selected and prepared in accordance with the relevant requirements of BSL100 shall be not less than the following values: NOT
12、EInformation on SI units is given in BS3763 “The International System of units (SI)” and BS350 “Conversion factors and tables”. 6.2 Flattening test. If stated on the order, the specified number of tubes shall be subjected to the flattening test. The distance between the inner sides of the test piece
13、 after flattening shall not exceed the following values: 7 Tolerances 7.1 Thickness. The thickness of the tube shall comply with the requirements ofTable 1. 7.2 Diameter. The diameters of drawn round tube shall comply with the requirements ofTable 2. Table 1 Tolerances on thickness Nominal thickness
14、 0.2% proof stress Tensile strength Elongation on gauge length of50 mm Full tube section Strip test piece mm MPa (= N/mm 2 ) MPa (= N/mm 2 ) % % Over Up to and including 1.0 240 290 10 8 1.0 5.0 240 290 12 10 5.0 10.0 240 290 14 12 Thickness (T) Maximum distance mm mm Up to and including 6.0 6T Over
15、 6.0 4T All dimensions in millimetres Nominal thickness Mean thickness atolerance Eccentricity b Over Up to and including 0.25 0.90 0.05 0.08 or 10% of nominal thickness, whichever is the greater 0.90 1.25 0.08 1.25 2.10 0.10 2.10 3.05 0.13 3.05 5.15 0.15 5.15 7.60 0.20 7.60 9.50 0.38 a Mean thickne
16、ss: the sum of the thicknesses measured at the ends of any two diameters at right angles, divided by four. b Eccentricity: allowable deviation of the thickness, at any point, from the nominal thickness. BSL117:1975 BSI 01-2000 3 Table 2 Tolerances on outside or inside diameters of drawn round tube A
17、ll dimensions in millimetres Nominal outside or inside diameter Deviation of mean diameter afrom nominal Ovality b Over Up to and including 13.0 0.08 0.15 13.0 25.5 0.10 0.20 25.5 51.0 0.13 0.25 51.0 76.5 0.15 0.30 76.5 127.0 0.20 0.40 127.0 155 0.25 0.50 a Mean diameter: half the sum of any two dia
18、meters at right angles. b Ovality: allowable deviation of the diameter, at any point, from the nominal diameter.BS L 117:1975 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK vi
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