1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g581,0 mm ka k6 mm The European Standard EN 2803:2005 has the status of a British StandardICS 49.025.2
2、0Aluminium alloy AL-P7475-T761 Clad sheet and strip BRITISH STANDARD AEROSPACE SERIESBS EN 2803:2005BS EN 2803:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 4 October 2005 BSI 4 October 2005ISBN 0 580 46317 6The British Standards which
3、implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication
4、 does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the E
5、N title page, pages 2 to 6, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this subcommittee can be obtained on reque
6、st to its secretary.Cross-referencesenquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard is the official English language version of EN 28
7、03:2005. The UK participation in its preparation was entrusted by Technical Committee ACE/61, Metallic materials for aerospace purposes, to Subcommittee ACE/61/-/24, Light alloys, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European
8、 committee any EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2803 June 2005 ICS 49.025.20 English version Aerospace series - Aluminium alloy AL-P7475-T761 - Clad sheet and strip - 1,0 mm a 6 mm Srie arospatiale - Alliage daluminium AL-P7475-T761 - Tles et bandes plaques - 1,0 mm a 6 mm Luft-
9、und Raumfahrt - Aluminiumlegierung AL-P7475-T761 -Bleche und Bnder, plattiert - 1,0 mm a 6 mm This European Standard was approved by CEN on 22 April 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the st
10、atus 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. This European Standard exists in three official versions (English, French, German). A
11、 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 bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark,
12、Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCH
13、ES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2803:2005: E2 Foreword This document (EN 2803:2005) has been prepared by the European Association of
14、Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries 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 t
15、o CEN. 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 December 2005, and conflicting national standards shall be withdrawn at the latest by December 2005. Attention is drawn to the possibility th
16、at some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound t
17、o implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the Unit
18、ed Kingdom. EN 2803:20053 Introduction This standard is part of the series of EN metallic material standards for aerospace applications. 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
19、requirements relating to: Aluminium alloy AL-P7475- T761 Clad sheet and strip 1,0 mm a 6 mm for aerospace application. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated r
20、eferences, the latest edition of the referenced document (including any amendments) applies. EN 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards and their use. EN 4400-2, Aerospace series Aluminium and aluminium alloy wrought produ
21、cts Technical specification Part 2: Sheet and strip. 1)EN 4500-2, Aerospace series Metallic materials Rules for drafting and presentation of material standards Part 2: Specific rules for aluminium, aluminium alloys and magnesium alloys. 1) 1) Published as AECMA Prestandard at the date of publication
22、 of this standard. EN 2803:20054 1 Material designation Aluminium alloy AL-P7475- Others Element Si Fe Cu Mn Mg Cr Zn Ti Each Total Al min. 1,2 1,9 0,18 5,2 2 Chemical composition % max. 0,10 0,12 1,9 0,06 2,6 0,25 6,2 0,06 0,05 0,15 Base 3 Method of melting 4.1 Form Clad sheet and strip 4.2 Method
23、of production Rolled 4.3 Limit dimension(s) mm 1,0 a 6 5 Technical specification EN 4400-2 Delivery condition T761 6.1 Heat treatment 460 C 485 C a/ WQ 40 C + 115 C 125 C / 3 h t 6 h + 158 C 178 C / 14 h t 70 h 6.2 Delivery condition code U Use condition T761 7 Heat treatment Delivery condition Char
24、acteristics 8.1 Test sample(s) See EN 4400-2. 8.2 Test piece(s) See EN 4400-2. 8.3 Heat treatment Use condition 9 Dimensions concerned mm 1,0 a 2,5 mm Full thickness after removal of cladding Test at a/10 plane 7 Exfoliation corrosion shall not be greater than that of grade EB 72 See EN 4400-2. Clad
25、ding chemical composition % Material designation Aluminium alloy AL-P7072- Others Element Si + Fe Cu Mn Mg Zn Each Total Al min. 0,8 7max. 0,7 0,10 0,10 0,10 1,3 0,05 0,15 Base 82 Batch uniformity See EN 4400-2. 7 Electrical conductivity See EN 4400-2. 95 Marking inspection See EN 4400-2. 96 Dimensi
26、onal inspection See EN 4400-2. 98 Notes aThis temperature range may be extended to 525 C (particularly to facilitate the use of a continuous solution heat treatment furnace) with the proviso that appropriate prior homogenisation heat treatments are applied to the rolling ingot and/or sheet/strip to
27、avoid incipient melting (overheating). 99 Typical use EN 2803:20056 100 Product qualification See EN 4400-2. Qualification programme to be agreed between manufacturer and purchaser. EN 2803:2005blankBS EN BSI389 Chiswick High RoadLondonW4 4AL2803:2005BSI British Standards InstitutionBSI is the indep
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