BS-EN-2257-1997.pdf
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1、BRITISH STANDARD AEROSPACE SERIES BS EN 2257:1997 Circular tubes for structures in aluminium and aluminium alloys Diameter 6 mm k D k 100 mm Thickness 1 mm k a k 6 mm Dimensions The European Standard EN 2257:1997 has the status of a British Standard ICS 49.040.20 Licensed Copy: sheffieldun sheffield
2、un, na, Thu Nov 02 17:59:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2257:1997 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 June 1997 BSI 12-1999 The follo
3、wing BSI references relate to the work on this standard: Committee reference ACE/61 Draft for comment 95/702854 DC ISBN 0 580 26686 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee ACE/61, Inspection and testing requirem
4、ents for aerospace metallic materials, upon which the following bodies were represented: Aluminium Federation British Investment Casting Trade Association Copper Development Association Light Metal Founders Association Ministry of Defence National Physical Laboratory Society of British Aerospace Com
5、panies Limited UK Steel Association Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:59:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2257:1997 BSI 12-1999i Contents Page Committees responsibleInside front cover National forewor
6、dii Foreword2 0Introduction3 1Scope3 2Normative references3 3Form3 4Recommended dimensions and mass4 5Tolerances4 Figure 13 Table 14 Table 24 Table 35 Table 45 Table 55 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:59:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2257:1997 ii BSI 1
7、2-1999 National foreword This British Standard has been prepared by Technical Committee ACE/61 and is the English language version of EN 2257:1997 Aerospace series Circular tubes for structures in aluminium and aluminium alloys Diameter 6 mm k D k 100 mm Thickness 1 mm k a k 6 mm Dimensions, publish
8、ed by the European Committee for Standardization (CEN). EN 2257:1997 was produced as a result of international discussions in which the United Kingdom took an active part. Cross-references The British Standards corresponding to the European Standards referred to in the text are identical in number a
9、nd title with those given in clause 2. 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. Compliance with a British Standard does not of itself confer immunity from legal obligations. Su
10、mmary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 5 and a back cover. 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 fro
11、nt cover. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:59:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2257 January 1997 ICS 49.040.10 Descriptors: Aircraft industry, structure, pipe, tube, aluminium, aluminium alloys, dimension Engl
12、ish version Aerospace series Circular tubes for structures in aluminium and aluminium alloys Diameter 6 mm k D k 100 mm Thickness 1 mm k a k 6 mm Dimensions Srie arospatiale Tubes circulaires pour structures en aluminium et alliages daluminium Diamtres 6 mm u D u 100 mm Epaisseurs 1 mm u a u 6 mm Di
13、mensions Luft- und Raumfahrt Runde Konstruktionsrohre aus Aluminium und Aluminiumlegierungen Durchmesser 6 mm u D u 100 mm Wanddicken 1 mm u a u 6 mm Mae This European Standard was approved by CEN on 1996-08-04. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulat
14、e the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist
15、 in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodie
16、s of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secret
17、ariat: rue de Stassart 36, B-1050 Brussels 1997 Copyright reserved to CEN members Ref. No. EN 2257:1997 E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 02 17:59:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 2257:1997 BSI 12-1999 2 Foreword This European Standard has been prepared by the Eur
18、opean Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of AECMA prior to its presentation to C
19、EN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 1997, and conflicting national standards shall be withdrawn at the latest by July 1997. According to the CEN/CENELEC Internal Regulations,
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