1、BSI Standards PublicationAEROSPACE SERIESSpecification for copper-zinc-aluminium-nickel-silicon alloy tubeBS 3B 27:2009Incorporating Corrigendum No. 1BS 3B 27:2009 BRITISH STANDARDPublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the document was
2、last issued. The British Standards Institution 2014 Published by BSI Standards Limited 2014ISBN 978 0 580 88326 2ICS 49.025.99The following BSI references relate to the work on this standard: Committee reference ACE/61 Draft for comment 09/30181199 DCPublication historyFirst published September 2002
3、Second (present) edition, November 2009Amendments issued since publicationDate Text affected November 2014 C1. Correction to Table 1, line 9BRITISH STANDARD The British Standards Institution 2014 iBS 3B 27:2009ContentsForeword iii1 Scope 12 Normative references 13 Technical requirements 1Bibliograph
4、y 5List of tablesTable 1 Technical requirements for Cu-Zn-Al-Ni-Si alloy tube 2Table 2 Dimensional tolerances for Cu-Zn-Al-Ni-Si alloy tube 4Summary of pagesThis document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 6, an inside back cover and a back cover.BS 3B 27:2009i
5、i The British Standards Institution 2014BRITISH STANDARDThis page deliberately left blankBRITISH STANDARD The British Standards Institution 2014 iiiBS 3B 27:2009ForewordPublishing informationThis British Standard is published by BSI and came into effect on 30 November 2009. It was prepared by Panel
6、ACE/61/-/16, Copper and miscellaneous alloys, under the authority of Technical Committee ACE/61, Metallic materials for aerospace purposes. A list of organizations represented on this committee can be obtained on request to its secretary.SupersessionThis British Standard supersedes BS 2B 27:2002, wh
7、ich is withdrawn.Information about this documentThis is a full revision of BS 2B 27 and introduces the following principal changes:a) requirements are stated in tabular format in accordance with EN 4500-1;b) in line 33 of Table 1, reference to BS EN 10233 has been replaced by reference to Section 5
8、of BS B 100 and the test requirements added using the method indicated in EN 4500-1; c) in line 41 of Table 1, reference to BS EN 10234 has been replaced by reference to Section 5 of BS B 100 and the test requirements added using the method indicated in EN 4500-1;d) in line 54 (eddy current) of Tabl
9、e 1 (incorrectly identified as line 56 in BS 2B 27) the drilled hole sizes have been transferred to Section 5 of BS B 100;e) in line 55 of Table 1, test pressure details have been replaced by reference to Section 5 of BS B 100 and the test requirements added using the method indicated in EN 4500-1;f
10、) in line 60 of Table 1, test details have been replaced by reference to Section 5 of BS B 100.Text introduced or altered by Corrigendum No. 1 is indicated in the text by tags . Minor editorial corrections are not tagged.Hazard warningsWARNING. This British Standard calls for the use of substances a
11、nd/or procedures that can be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage.Use of this document It has been assumed in the preparation of this British
12、Standard that the execution of its provisions will be entrusted to appropriately qualified and experienced people, for whose use it has been produced.BS 3B 27:2009iv The British Standards Institution 2014BRITISH STANDARDPresentational conventions The provisions of this standard are presented in roma
13、n (i.e. upright) type. Its requirements are expressed either as a set of instructions or in sentences in which the principal auxiliary verb is “shall”.Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.Contractual
14、 and legal considerationsThis publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BRITISH STANDARD The British Standards Institution 2014
15、 1BS 3B 27:20091 ScopeThis British Standard specifies requirements for copper-zinc-aluminium-nickel-silicon alloy supplied in the form of tube.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited
16、 applies. For undated references, the latest edition of the referenced document (including any amendments) applies.BS B 100, Procedure for inspection, testing and acceptance of wrought copper alloys 3 Technical requirements3.1 Material to this standard shall conform to Table 1.NOTE The format and sy
17、mbols used in Table 1 are derived from EN 4500-1.3.2 Dimensional tolerances shall conform to Table 2. Tolerances on wall thickness shall not vary from the nominal thickness by more than 10%.3.3 For the purposes of this standard, a batch shall be tube of the same outside diameter and wall thickness,
18、manufactured by the same route and heat treated together.BS 3B 27:20092 The British Standards Institution 2014BRITISH STANDARDTable 1 Technical requirements for Cu-Zn-Al-Ni-Si alloy tube1 Material designation BS B 272 Chemical composition % Element Cu Al Ni Si Sn Pb Fe Mn Zn Total impuritiesMin. 81.
19、0 0.70 0.80 0.80 Rem 0.50 1)Max. 86.0 1.20 1.40 1.30 0.10 0.05 0.25 0.103 Method of melting 4.1 Form Tube4.2 Method of production Seamless drawn4.3 Limit dimension(s) mm 4 G D G 70 5 Technical specification Sections 1 and 5 of BS B 1006.1 Delivery condition SoftenedHeat treatment 6.2 Delivery condit
20、ion code 7 Use condition Delivery conditionHeat treatment Characteristics8.1 Test sample(s) See Section 5 of BS B 1008.2 Test piece(s) See Section 5 of BS B 1008.3 Heat treatment Use condition 9 Dimensions concerned mm 4 G D G 7010 Thickness of cladding on each face% 11 Direction of test piece L12TT
21、emperature h C Ambient13 Proof stress Rp0.2MPa H 22014 Strength RmMPa 430 G Rm G 50015 Elongation A % H 4016 Reduction of areaZ % 17 Hardness HV G 14018 Shear strength RcMPa 19 Bending j 20 Impact strength 21CTemperature h C 22 Time h 23 Stress raMPa 24 Elongation a % 25 Rupture stress rRMPa 26 Elon
22、gation at ruptureA % 27 Notes (see line 98)1)BRITISH STANDARD The British Standards Institution 2014 3BS 3B 27:2009Table 1 Technical requirements for Cu-Zn-Al-Ni-Si alloy tube (continued)33 Flattening test See Section 5 of BS B 1002 One tube per batch6 Closed flat7 No cracks shall be visible without
23、 the use of magnifying aids. Slight cracking at the edges shall not be considered cause for rejection.41 Drift expanding test See Section 5 of BS B 1002 Both ends of each tube6 b = (45 1); expansion = 40%7 No cracks shall be visible without the use of magnifying aids. Slight cracking at the edges sh
24、all not be considered cause for rejection.44 External defects (visual) See Section 5 of BS B 10054 Tube leakage (eddy current test) See Section 5 of BS B 1007 The sorting limit shall be the smallest amplitude of the three signals produced by the hole or holes in the reference standard tube.54 Tube l
25、eakage (hydraulic pressure test) See Section 5 of BS B 1002 Each tube7 When subjected to the hydraulic pressure, or after release of the pressure, the tube shall not show defects such as leaks, cracks, pinholes or bulges.55 Distension test See Section 5 of BS B 1002 One tube per batch7 The test piec
26、e shall not exhibit any permanent deformation greater than 0.2% of the mean diameter and shall not exhibit any harmful defect.60 Bore test See Section 5 of BS B 10095 Marking See Section 5 of BS B 10096 Dimensional inspection See Table 298 Notes 1) Total impurities excludes Sn, Fe, Pb and Mn.BS 3B 2
27、7:20094 The British Standards Institution 2014BRITISH STANDARDTable 2 Dimensional tolerances for Cu-Zn-Al-Ni-Si alloy tubeNominal outside diameter (mm) Tolerance on outside diameter (mm)Mean Ovality48121620222530 (thickness G 1)30 (thickness 1)40 (thickness G 1.22)40 (thickness 1.22)50 (thickness G
28、1.22)50 (thickness 1.22)60 (thickness G 1.22)60 (thickness 1.22)700.050.050.050.050.050.050.050.070.070.070.070.100.100.1250.1250.1250.070.070.070.070.070.100.100.150.100.200.1250.250.1750.400.250.40NOTE The tolerance on ovality indicates the amount by which the largest (or smallest) diameter, measu
29、red at any point on the tube, may depart from the mean diameter. It is not applicable to tubes with outside diameter:nominal thickness ratio of greater than 50.BRITISH STANDARD The British Standards Institution 2014 5BS 3B 27:2009BibliographyStandards publicationsFor dated references, only the editi
30、on cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.BS EN 10233, Metallic materials Tube Flattening test 1)BS EN 10234, Metallic materials Tube Drift expanding test 1)EN 4500-1, Metallic materials Rules for the drafting and prese
31、ntation of material standards Part 1: General rules 2)1)Referred to in the foreword only.2)Published as ASD-STAN Prestandard at the date of publication of this standard.BS 3B 27:20096 The British Standards Institution 2014BRITISH STANDARDThis page deliberately left blankThis page deliberately left b
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