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1、BRITISH STANDARD AEROSPACE SERIES BS B 30:1991 Incorporating Amendment Nos. 1 and 2 Specification for Copper-beryllium alloy strip, foil and parts (solution treated, cold rolled: half hard W(1/2H) and precipitated) Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09
2、 03:04:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS B 30:1991 This British Standard, having been prepared under the direction of the Aerospace Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 28 June 1991 BSI 02-2000 The following BSI
3、references relate to the work on this standard: Committee reference ACE/16 Draft for comment 90/73958 DC ISBN 0 580 19429 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committ
4、ee ACE/16, upon which the following bodies were represented: British Non-ferrous Metals Federation Copper Development Association Ministry of Defence Society of British Aerospace Companies Ltd. Amendments issued since publication Amd. No.DateComments 7117April 1992 8942December 1995 Indicated by a s
5、ideline in the margin Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS B 30:1991 BSI 02-2000i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2References1 3Technical requirements1 Ta
6、ble 1 Technical requirements for Cu-Be alloy strip, foil and parts (solution treated, cold rolled: half hard and precipitated)2 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS B 30:1991 ii BSI 02-2000 Forewo
7、rd This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee. WARNING. This British Standard calls for the use of substances and/or procedures that may be injurious to health if adequate precautions are not taken. It refers only to technical suitability
8、and in no way absolves either the designer, the producer, the supplier or the user from statutory obligations relating to health and safety at any stage of manufacture or use. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are re
9、sponsible 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 updated (see co
10、pyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS B 30:1991 BSI 02-20001 1 Scope
11、 This British Standard specifies the chemical composition, mechanical properties and inspection and test requirements for a precipitation hardening copper-beryllium alloy supplied in the form of strip and foil. The material is supplied in the solution treated and cold rolled condition for precipitat
12、ion treatment after conversion into parts. 2 References This standard makes reference to the following standards publications: BS B 100, Procedure for inspection, testing and acceptance of wrought copper alloys1). BS 2870, Specification for rolled copper and copper alloys: sheet, strip and foil. BS
13、5555, Specification for SI units and recommendations for the use of their multiples and of certain other units. BS 5775, Specification for quantities, units and symbols Part 0: General Principles. BS EN 2500, Instructions for the drafting and use of metallic material standards1). 3 Technical require
14、ments 3.1 The technical requirements for material to this standard shall comply with those specified in Table 1. 3.2 Symbols and units in Table 1 shall be interpreted in accordance with BS 5555, BS 5775-0 or BS EN 2500. 3.3 For the purposes of this standard, a batch is defined as the material of the
15、 same nominal cross-sectional dimensions, from the same cast, manufactured by the same route and heat treated together. 1) In preparation. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS B 30:1991 2 BSI 02-2
16、000 Table 1 Technical requirements for Cu-Be alloy strip, foil and parts (solution treated, cold rolled: half hard and precipitated) 1 Material designationCuBe1.9 2 Chemical composition %ElementBeCo + Ni Ni + Co + Fe AlSiOthers Cu min.1.800.20Base max.2.000.60.20 0.20 0.50 3 Method of melting 4 Form
17、 Method of production Limit dimensions (mm) Strip and foil Rolling 0.10 k a k 3.0 5 5.1 Technical specificationSections 1 and 6 of BS B 100 5.2 Dimensional standardSection 6 of BS 2870:1980 6 6.1 Delivery condition and heat treatment Solution treated and cold rolled (“H) 760 C k k 835 C/Quench 6.2 D
18、elivery condition code 7 Use condition and heat treatment Solution treated and cold rolled and precipitation treated Delivery condition + 315 C k k 330 C/t = 2 h/AC Characteristics 8 Sampling Test piece Heat treatment Delivery conditionUse condition 9 Dimensions concernedmm 10 Thickness of cladding
19、on each face% 11 Direction of sampleLTL 12 Tensile TemperatureCAmbient temperature 13Proof stressRp0.2MPa U 1 130 14StrengthRmMPa 590 k Rmk 690 1 270 k Rmk 1 480 15ElongationA%U 5k1 16Reduction of areaZ% 17 Hardness180 k HV k 225370 k HV k 430 18 Shear strengthRcMPa 19 Bendingk0.5 ( = 90)1.0 ( = 90)
20、 20 Impact strength 21 Creep TemperatureC 22Timeh 23StressaMPa 24Elongationa% 25Rupture stressRMPa 26Elongation at rupture A% Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 03:04:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: London South Ba
21、nk University, London South Bank University, Sat Dec 09 03:04:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS B 30:1991 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK vie
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