1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 31 March 2003 prEN 2803 Edition P 3 March 2003 Comments should be sent within six months after the date of publication to AECMA-STAN ICs: Descriptors: ENGLISH VERSION Supersedes edition P 2 February 1999 Aerospace series Al um i
2、ni um alloy AL-P7475- T761 Clad sheet and strip 1,0 mm I al 6 mm Srie arospatiale Alliage daluminium AL-P7475- T761 Tles et bandes plaques 1,0 mm I a16 mm Luft- und Raumfahrt Aluminiumlegierung AL-P7475- T761 Bleche und Bnder, plattiert 1,0 mm ia16 mm This “Aerospace Series“ Prestandard has been dra
3、wn up under the responsibility of AECMA-STAN (The European Association of Aerospace Industries - Standardization). It is published on green paper for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subse
4、quent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of AECMA-STAN it will be submit
5、ted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Metallic Material Domain I I Copyright 2003 O by AECMA-STA1 Page 2 prEN 2803: 2003 Foreword This standard was reviewed by the Domain Technical Coordinator of AECMA-STANS Metallic Material Domain. After
6、inquiries and votes carried out in accordance with the rules of AECMA-STAN defined in AECMA- STANS General Process Manual, this standard has received approval for Publication. Page 3 prEN 2803: 2003 O Introduction This standard is part of the series of EN metallic material standards for aerospace ap
7、plications. The general organization of this series is described in EN 4258. This standard has been prepared in accordance with EN 4500-2. 1 Scope This standard specifies the requirements relating to: Aluminium alloy AL-P7475- T761 Clad sheet and strip 1,0 mm 2,5 mm I a2,5mm 31 2ladding chemical mmp
8、osition % -I See EN 4400-2. 7 I Material I designation Aluminium alloy AL-P7072- 3atch uniformity - See EN 4400-2. - See EN 4400-2. Marking inspection Iimensional inspection Votes a This temperature range may be extended to 525 “C (particularly to facilitate the use of a continuous solution heat tre
9、atment furnace) with the proviso that appropriate prior homogenisation heat treatments are applied to the rolling ingot and/or sheetlstrip to avoid incipient melting (overheating). rypical use -I 100 See EN 4400-2. Qualification programme to be agreed between manufacturer and purchaser. Page 6 prEN 2803: 2003 - Product qualification
