1、BRITISH STANDARD AEROSPACE SERIES BS L 119:1975 Incorporating Amendment Nos. 1 and 2 Specification for Ingots and castings of aluminium-copper- nickel manganese- titanium-zirconium- cobalt-antimony alloy (Solution treated and artificially aged) (Cu 5.0, Ni 1.5, Mn 0.25, Ti 0.2, Zr 0.2, Co0.2, Sb 0.2
2、) UDC 629.7:669.715324742952962575 14 153.71 157.84BSL119:1975 This British Standard, having been approved by the AerospaceIndustry StandardsCommittee, was published under the authority of the Executive Board on 30September1975 BSI 01-2000 The following BSI references relate to the work on this stan
3、dard: Committee reference ACE/27 Draft for comment 74/72551 DC ISBN 0 580 08529 5 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
4、 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) and may have had amendments incorporated. This will be indicated in the amendment table
5、 on the inside front cover. Amendments issued since publication Amd. No. Date of issue Comments 3738 September 1981 6544 December 1990 Indicated by a sideline the marginBSL119:1975 BSI 01-2000 i Contents Page 1 Inspection and testing procedure 1 2 Chemical composition 1 3 Heat treatment 1 4 Mechanic
6、al properties 1ii blankBSL119:1975 BSI 01-2000 1 1 Inspection and testing procedure This British Standard shall be used in conjunction with the relevant sections of the latest issue of BSL101as follows: 2 Chemical composition 2.1 Ingots. The chemical composition of the ingots shall be: 2.2 Castings.
7、 The chemical composition of the castings shall be: 2.3 Trace elements. Where, in the course of routine analysis, the presence is detected of elements other than those listed in 2.1 and 2.2, the amounts of such elements, individually and totally, shall comply with the requirements of 2.1 or 2.2, as
8、appropriate. 3 Heat treatment 3.1 The castings and test sample shall be heat treated together as follows: a) solution treat at a temperature of540 5 C for not less than5h; b) quench into boiling water or oil at a temperature of80 C or in a polymer quenchant at a temperature not greater than30 C; NOT
9、EThe use of polymer quenchant as an alternative to water should be agreed by the purchaser. c) artificially age by heating at a temperature of215 5 C for12h to16h; d) cooling in air. 3.2 Where a polymer quenchant has been used in3.1 b), the nature of the quenchant shall be defined on the certificate
10、 of conformity for the castings. 4 Mechanical properties 4.1 Tensile test NOTEThe tensile test values specified for test pieces machined from separately cast test samples may not be realized in certain portions of castings. 4.1.1 Separately cast test samples. The mechanical properties obtained from
11、separately cast test samples, selected, prepared and tested in accordance with the relevant requirements of BSL101, shall be not less than the following values: NOTEInformation on SI units is given in BS3763“The International System of units (SI)” and BS350“Conversion factors and tables”. 4.1.2 Cut-
12、up test samples. If required by the drawing, order or Inspection Schedule, the mechanical properties to be obtained from cut-up test samples shall be agreed between the founder and the purchaser and shall be stated on the Inspection Schedule. 4.2 Hardness test. The hardness of castings heat treated
13、with unrelated test samples, in accordance with clause 3, shall be not less than the following values: Ingots sections 1 and 2 Castings not subject to cut-up testing sections 1 and 3 Castings subject to cut-up testing sections 1 and 4 Element % min. max. Copper 4.7 5.5 Magnesium 0.10 Silicon 0.25 Ir
14、on 0.40 Manganese 0.20 0.30 Nickel 1.3 1.7 Zinc 0.10 Titanium 0.15 0.25 Zirconium 0.10 0.30 Titanium + zirconium 0.50 Cobalt 0.10 0.30 Antimony 0.10 0.30 Others (see 2.3): each 0.05 total 0.15 Aluminium Remainder Element % min. max. Copper 4.5 5.5 Magnesium 0.10 Silicon 0.30 Iron 0.40 Manganese 0.20
15、 0.30 Nickel 1.3 1.7 Zinc 0.10 Titanium 0.15 0.25 Zirconium 0.10 0.30 Titanium + zirconium 0.50 Cobalt 0.10 0.30 Antimony 0.10 0.30 Others (see 2.3): each 0.05 total 0.15 Aluminium Remainder Test sample 0.2% proof stress Tensile strength Elongation MPa (= N/mm 2 ) MPa (= N/mm 2 ) % Sand cast 190 215
16、 1 Sand cast 85 HB Chill cast 85 HBBS L 119:1975 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated
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