BS-TA-47-1973.pdf
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1、BRITISH STANDARD AEROSPACE SERIES BS TA 47:1973 (Superseding BS TA 30 and BS TA 33 and, in part, BS TA 36) Incorporating Amendment No. 1 Specification for Forging stock of titanium-aluminium- molybdenum-tin-silicon alloy (Tensile strength 1050-1220 N/mm2) (Limiting ruling section 100 mm) UDC 629.7:6
2、69.295.571286782.018.26 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:02:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS TA 47:1973 This British Standard, having been approved by the Aerospace Industry Standards Committee, was published under the authority
3、 of the Executive Board on 2 February 1973 BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference ACE/49 Draft for comment 71/33667 ISBN 0 580 07487 0 A British Standard does not purport to include all the necessary provisions of a contract. Users of Britis
4、h Standards are responsible 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, pages 1 and 2, an inside back cover and a back cover
5、. 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 front cover. Amendments issued since publication Amd. No.Date of issueComments 3428December 1980 Indicated by a sideline in the margin Licensed
6、Copy: London South Bank University, London South Bank University, Sat Dec 09 03:02:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS TA 47:1973 BSI 02-2000i Contents Page 1Inspection and testing procedure1 2Manufacture1 3Chemical composition1 4Condition1 5Heat treatment1 6Mechanical properties2 Appen
7、dix A British Standards covering other forms of material of similar compositionInside back cover Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:02:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London Sout
8、h Bank University, Sat Dec 09 03:02:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS TA 47:1973 BSI 02-20001 NOTEOther forms of material of similar composition are covered by British Standards as listed in Appendix A. 1 Inspection and testing procedure This British Standard shall be used in conjunct
9、ion with Sections 1 and 3 of BS TA 100. 2 Manufacture The material shall be made from ingots produced, by consumable electrode melting, from materials having a total carbon content of not more than 0.08 %. 3 Chemical composition The chemical composition of the material shall be: 4 Condition 4.1 The
10、material shall be supplied as forged, hot rolled or extruded and may be stress relieved at the discretion of the manufacturer. NOTEStress relieving is achieved by heating the material uniformly for not more than 3 h at a temperature between 600 C and 700 C. 4.2 Unless otherwise stated on the drawing
11、, order or Inspection Schedule, the material shall be supplied either centreless ground or machined. 5 Heat treatment Test samples taken from the material shall be heat treated as follows: 1) heat at a temperature of 900 10 C and hold for 1 h per 25 mm of section, with a minimum of 20 min; 2) cool i
12、n air; 3) heat at a temperature of 500 5 C and hold for 24 h; 4) cool in air. Element % min.max. Aluminium Molybdenum Tin Silicon Iron Hydrogen Oxygen Nitrogen Oxygen + 2 nitrogen Titanium 3.0 3.0 1.5 0.3 5.0 5.0 2.5 0.7 0.20 0.010 0.25 0.03 0.27 Remainder Licensed Copy: London South Bank University
13、, London South Bank University, Sat Dec 09 03:02:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS TA 47:1973 2 BSI 02-2000 6 Mechanical properties 6.1 The mechanical properties obtained from test pieces selected, prepared and tested in accordance with the relevant requirements of BS TA 100 shall be:
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