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1、BRITISH STANDARD AEROSPACE SERIES CONFIRMED MAY 1993 BS HR 10: 1972 Incorporating Amendment No. 1 Specification for Nickel-cobalt- chromium- molybdenum-titanium- aluminium heat-resisting alloy billets, bars, forgings and parts (Nickel base, Co 20, Cr 20, Mo 5.9, Ti 2.1, Al 0.5) UDC 629.7:669.2452526
2、2829571 4:669.018.4 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 10:1972 This British Standard, having been approved by the Aerospace Industry Standards Committee, was published under the authority of
3、the Executive Board on 27 October 1972 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/48 Draft for comment 71/37469 ISBN 0 580 07007 7 A British Standard does not purport to include all the necessary provisions of a contract. Users of British St
4、andards 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 and a back cover. This standard has been u
5、pdated (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 1804September 1975 Indicated by a sideline in the margin Licensed Copy: London South Bank U
6、niversity, London South Bank University, Sat Dec 09 02:55:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS HR 10:1972 BSI 01-2000i Contents Page 1Inspection and testing procedure1 2Manufacture1 3Chemical composition1 4Condition1 5Heat treatment1 6Mechanical properties1 Licensed Copy: London South Ba
7、nk University, London South Bank University, Sat Dec 09 02:55:19 GMT+00:00 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 10:1972 BSI 01-20001 NOTE 1This specifi
8、cation complies with AICMA Recommendation Ni-P105-HT. NOTE 2Other forms of this alloy are covered by British Standards: BS HR 206, Plate, sheet and strip. BS HR 404, Seamless tubes. 1 Inspection and testing procedure This British Standard shall be used in conjunction with the relevant sections of BS
9、 2HR 100 as follows: 2 Manufacture The material shall be manufactured by one of the following processes: 1) air melting; 2) vacuum melting; 3) air melting and vacuum refining; 4) consumable electrode remelting. 3 Chemical composition The alloy shall contain: 4 Condition 4.1 Unless otherwise agreed t
10、he material shall be supplied in the appropriate condition stated below: 4.2 Finished parts shall be supplied in the finally heat treated condition in accordance with 5.2. 5 Heat treatment 5.1 Solution treatment. The material shall be heated uniformly at a temperature of 1 150 10 C for the appropria
11、te time shown below, followed by quenching in water. 5.2 Precipitation treatment. The material shall be heated uniformly at a temperature of 800 10 C for 8 h, followed by cooling in air. 6 Mechanical properties 6.1 Mechanical tests. The mechanical properties obtained from test pieces selected, prepa
12、red and tested in accordance with the requirements of BS 2HR 100 shall be as follows: 6.1.1 Tensile test at 780 C Bars for machining and extruded sectionsSections 1 and 2 Forging stock and billets and bars for subsequent workingSections 1 and 3 ForgingsSections 1 and 4 Parts finally heat treated aft
13、er machiningSections 1 and 8 Element % min.max. Carbon0.040.08 Silicon0.40 Manganese0.60 Sulphur0.007 Silver0.0005 (5 p.p.m.) Aluminium0.300.60 Boron0.005 Bismuth0.0001 (1 p.p.m.) Cobalt19.021.0 Chromium19.021.0 Copper0.2 Iron0.7 Molybdenum5.66.1 Lead0.0020 (20 p.p.m.) Titanium1.92.4 Aluminium +2.42
14、.8 Titanium NickelRemainder Gr 2 MaterialCondition of supply Bars and extruded sections for machining Solution treated Extruded sections for subsequent forming Solution treated Billets and bars for forging Hot or cold worked and subsequently machined or ground. Material of other than round section m
15、ay be supplied in the descaled condition. ForgingsSolution treated Diameter or equivalent section Time at temperature mmh Up to and including 8“ Greater than 81“ 2“ 0.2 % proof stressTensile strengthElongation N/mm2N/mm2% min.min.min. 40054012 Licensed Copy: London South Bank University, London Sout
16、h Bank University, Sat Dec 09 02:55:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS HR 10:1972 2 BSI 01-2000 6.1.2 Creep test6.2 Hardness 6.2.1 The hardness of bars and sections heat treated in accordance with 5.1 shall be not greater than 255 HB. 6.2.2 The hardness of forgings heat treated in acco
17、rdance with 5.1 shall be not greater than 229 HB. TemperatureStress Total plastic strain in 50 h CN/mm2% max. 7801200.10a NOTE1 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
18、and tables”. a For cold drawn and finally heat treated bar, the total plastic strain under the same test conditions shall not exceed 0.15 %. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:55:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy:
19、London South Bank University, London South Bank University, Sat Dec 09 02:55:19 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS HR 10: 1972 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It pr
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