1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g580,6 mm ka k6 mm The European Standard EN 2802:2005 has the status of a British StandardICS 49.025.2
2、0Aluminium alloy AL-P7475-T761 Sheet and strip BRITISH STANDARD AEROSPACE SERIESBS EN 2802:2005BS EN 2802:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 4 October 2005 BSI 4 October 2005ISBN 0 580 46309 5Cross-referencesThe British Stand
3、ards which 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
4、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 does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front co
5、ver, the EN 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 obtaine
6、d on request to its secretary.enquiries 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 2802:200
7、5. 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 commi
8、ttee any EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2802 June 2005 ICS 49.025.20 English version Aerospace series - Aluminium alloy AL-P7475-T761 - Sheet and strip - 0,6 mm a 6 mm Srie arospatiale - Alliage daluminium AL-P7475-T761 - Tles et bandes - 0,6 mm a 6 mm Luft- und Raumfahrt - Alu
9、miniumlegierung AL-P7475-T761 -Bleche und Bnder - 0,6 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 status of a national standard wi
10、thout 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 version in any other language
11、 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, Estonia, Finland, France, Germ
12、any, 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 EUROPISCHES KOMITEE FR NORMUNG Manageme
13、nt 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 2802:2005: E2 Foreword This document (EN 2802:2005) has been prepared by the European Association of Aerospace Manufacturers - Stan
14、dardization (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 to CEN. This European Standard
15、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 that some of the elements of thi
16、s 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 to implement this European Stan
17、dard: 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 United Kingdom. EN 2802:20053 Intr
18、oduction 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 requirements relating to: Alum
19、inium alloy AL-P7475- T761 Sheet and strip 0,6 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 references, the latest edition of th
20、e 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 products Technical specification Part 2:
21、 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 of this standard. EN 2802:20054 1
22、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 Sheet and strip 4.2 Method of production Rolled 4.3 Limit dimension
23、(s) mm 0,6 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 Characteristics 8.1 Test sample(s) See EN 44
24、00-2. 8.2 Test piece(s) See EN 4400-2. 8.3 Heat treatment Use condition 9 Dimensions concerned mm 0,6 a 6 10 Thickness of cladding on each face % 11 Direction of test piece LT 12 Temperature C Ambient 13 Proof stress Rp0,2MPa 415 14 Strength RmMPa 490 15 Elongation A % A50 mm 9 16 T Reduction of are
25、a Z % 17 Hardness 18 Shear strength RcMPa 19 Bending k 20 Impact strength 21 Temperature C 22 Time h 23 Stress aMPa 24 Elongation a % 25 Rupture stress RMPa 26 C Elongation at rupture A % 27 Notes (see line 98) aEN 2802:20055 32 Electrical conductivity See EN 4400-2.7 22,7 MS/m Acceptable 22,0 MS/m
26、22,7 MS/m Acceptable if Rp0,2 475 MPa and/or if exfoliation corrosion tests meet the acceptance criteria: see line 49. 22,0 MS/m Not acceptable 40 Fracture toughness (Kc) See EN 4400-2.7 Dimensions (mm) T-L MPa m 1,0 a 3,2 95 3,2 a 6 85 44 External defects See EN 4400-2. 47 Notch/yield ratio (Re/Rp0
27、,2) See EN 4400-2. 49 Exfoliation corrosion See EN 4400-2. 2 The “capability clause“ shall apply unless testing is required to determine acceptance: see line 32. In that case, frequency of testing shall be agreed between the manufacturer and purchaser. 7 Exfoliation corrosion shall not be greater th
28、an that of grade EB 82 Batch uniformity See EN 4400-2. 7 Electrical conductivity See EN 4400-2. or 7145 (Typical value) Hardness HB 20 per product 30 per batch 95 Marking inspection See EN 4400-2. 96 Dimensional inspection See EN 4400-2. 98 Notes aThis temperature range may be extended to 525 C (par
29、ticularly 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 avoid incipient melting (overheating). 99 Typical use EN 2802:20056 100 Product qualification
30、 See EN 4400-2. Qualification programme to be agreed between manufacturer and purchaser. EN 2802:2005blankBS EN BSI389 Chiswick High RoadLondonW4 4AL2802:2005BSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on
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