BS-HR-5-1972.pdf
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1、BRITISH STANDARD AEROSPACE SERIES CONFIRMED APRIL 1979 BS HR 5:1972 Incorporating Amendment No. 1 Specification for Nickel-chromium- titanium heat-resisting alloy billets, bars, forgings and parts (Nickel base, Cr 19.5, Ti 0.4) UDC 629.7:669.24526295-4:669.018.4 Licensed Copy: London South Bank Univ
2、ersity, London South Bank University, Sat Dec 09 02:55:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS HR 5:1972 This British Standard, having been approved by the Aerospace Industry Standards Committee, was published under the authority of the Executive Board on 27 October 1972 BSI 12-1999 The fol
3、lowing BSI references relate to the work on this standard: Committee reference ACE/48 Draft for comment 71/35521 ISBN 0 580 07017 4 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. Com
4、pliance 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) and may have had amendments incorpora
5、ted. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.Date of issueComments 5682July 1988Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:55:19 GMT+00:00
6、2006, Uncontrolled Copy, (c) BSI BS HR 5:1972 BSI 12-1999i Contents Page 1Inspection and testing procedure1 2Manufacture1 3Chemical composition1 4Condition1 5Heat treatment1 6Mechanical properties1 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:55:19 GMT+00:
7、00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:55:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS HR 5:1972 BSI 12-19991 NOTE 1This specification complies with AICMA Recommendation Ni-P91-HT. NOTE 2Other forms of
8、 this alloy are covered by British Standards: HR.203, Plate, sheet and strip. HR.403, Seamless tube. HR.504, Bar, wire and rivets. 1 Inspection and testing procedure This British Standard shall be used in conjunction with the relevant sections of British Standard 2HR.100 as follows: 2 Manufacture Th
9、e material shall be manufactured by an electric process. 3 Chemical composition The alloy shall contain: 4 Condition 4.1 Unless otherwise agreed the material shall be supplied in the appropriate condition stated below: 4.2 Finished parts shall be supplied in the annealed condition in accordance with
10、 5.2. 5 Heat treatment 5.1 Softening treatment. Material required to be supplied in the softened condition shall be heated uniformly at a minimum temperature of 1 050 C followed by quenching in water. 5.2 Annealing treatment. The material and test samples shall be heated uniformly at a temperature w
11、ithin the range 1 000 C to 1 100 C followed by cooling in air. 6 Mechanical properties 6.1 Mechanical test at room temperature. The mechanical properties obtained from test pieces selected, prepared and tested in accordance with the requirements of British Standard 2HR.100 shall be as follows: Tensi
12、le test NOTEConversion factors. 1 N/mm2= 1 MN/m2= 0.102 kgf/mm2= 0.065 tonf/in2. Information on SI units is given in BS 3763 “The International System of units (SI)”; see also BS 350 “Conversion factors and tables”. 6.2 Hardness test. The hardness of material heat treated in accordance with 5.1 or 5
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