AECMA PREN 2257-1979 Circular Structural Tubes in Aluminium and Aluminium Alloys Dimensions Aerospace Series Edition 1《航空航天系列.铝和铝合金圆形构造管尺寸.第1版》.pdf
《AECMA PREN 2257-1979 Circular Structural Tubes in Aluminium and Aluminium Alloys Dimensions Aerospace Series Edition 1《航空航天系列.铝和铝合金圆形构造管尺寸.第1版》.pdf》由会员分享,可在线阅读,更多相关《AECMA PREN 2257-1979 Circular Structural Tubes in Aluminium and Aluminium Alloys Dimensions Aerospace Series Edition 1《航空航天系列.铝和铝合金圆形构造管尺寸.第1版》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、AECMA PREN2257 77 10123Ll 0002670 O A.E.C.M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM DRAFT prE N 2257 Edition 1 January 1979 ENGLISH VERSION CIRCULAR STRUCTURAL TUBES IN ALUMINIUM AND ALUMINIUM ALLOYS DIMENSIONS AEROSPACE SERIES TUBES CIRCULAIRES RUNDE KONSTRUKTIONSROHRE POUR CONSTRUCTION AB MES
2、SU N GE N EN ALUMINIUM ET ALLIAGES DALUMINIUM AUSALUMINIUM UND ALUMINIUM-LEGIERUNGEN DIM E NSIONS LUFT-UND RAUMFAHRT SERIE AEROSPATIALE The text of this standard, which exists in three equivalent versions (English, French, German) has been drawn up under the responsability of A ECMA (Association Eur
3、openne des Constructeurs de Matriel Arospatial) and has been circulated to Official Services Any reservations expressed by Official Services and not resolved in this issue, have been incorporated in the history sheet which has accompanied this prEN to CEN. It is published on yellow paper as a draft
4、European Standard intended to receive, under the same presentation and according to its own rules, the approval of CEN (European Committee for Standardization). Approved by The equivalent versions in French and German languages cn COMITE DE NORMALISATION be supplied by B.N.A.E., 8, rue Moreau-Vauthi
5、er Of A.E.C.M.A. 1977-12-16 92100 BOULOGNE-BILLANCOURT - FRANCE. i Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN2257 77 W LOL23LL 0002b7L
6、2 W prEN2257 page 2 CONTENTS 1 SCOPE AND FIELD OF APPLICATION 2 REFERENCES 3 MATERIALS 4 REQUIRED CHARACTERISTICS 5 DESIGNATION 6 MARKING 7 TECHNICAL SPECIFICATION a Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo rep
7、roduction or networking permitted without license from IHS-,-,-AECMA PREN2257 79 W LOL23LL 0002672 4 W prEN2257 page 3 DRAFT EUROPEAN STANDARD AEROSPACE SERIES prEN225 7 CIRCULAR STRUCTURAL TUBES IN ALUMINIUM AND ALUMINIUM ALIDYS D IMENS IONS 1 SCOPE AND FIELD OF APPLICATION This standard specifies
8、the dimensions and tolerances of circular aluminium and aluminium alloys structural tubes used in aerospace construction. 2 REFERENCES IS0 2964-1974, Aircraft - Tubing outside diameters and thicknesses, Metric EN20 70- 1 dimens ions. Inspection and testing requirements for aluminium and alumi- nium
9、alloys wrought products - General requirements i), EN2070-4 Inspection and testing requirements for aluminium and alumi- nium alloys wrought products - Inspection and testing requi- rements for tubes 1). 3 MATERIALS The materials are defined in the material standards and Technical Specification. 4 R
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