1、BRITISH STANDARD AEROSPACE SERIES BS EN 3474:2005 Aluminium alloy AL-P2024-T81 Sheet and strip 0,25 mm k a k 6 mm The European Standard EN 3474:2005 has the status of a British Standard ICS 49.025.20 BS EN 3474:2005 This British Standard was published under the authority of the Standards Policy and
2、Strategy Committee on 11 November 2005 BSI 11 November 2005 ISBN 0 580 46316 8 National foreword This British Standard is the official English language version of EN 3474:2005. The UK participation in its preparation was entrusted by Technical Committee ACE/61, Metallic materials for aerospace purpo
3、ses, to Subcommittee ACE/61/-/24, Light alloys, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this doc
4、ument 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 does not purport to include all the necessary provisions of a contract
5、. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for c
6、hange, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright notic
7、e displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3474 June 2005 ICS 49.025.20 English version Aerospace series - Aluminium alloy AL-P2024-T81 - Sheet and strip - 0
8、,25 mm a 6 mm Srie arospatiale - Alliage daluminium AL-P2024-T81 - Tles et bandes - 0,25 mm a 6 mm Luft- und Raumfahrt - Aluminiumlegierung AL-P2024-T81 - Bleche und Bnder - 0,25 mm a 6 mm This European Standard was approved by CEN on 22 April 2005. CEN members are bound to comply with the CEN/CENEL
9、EC Internal Regulations which stipulate 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 CE
10、N member. This European Standard exists 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 m
11、embers are the national standards bodies of 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
12、United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES 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 3474:2
13、005: EEN 3474:2005 2 Foreword This document (EN 3474:2005) has been prepared by the European Association of 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 N
14、ational Associations and the Official Services of the member countries of AECMA, prior to its presentation to 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 na
15、tional standards shall be withdrawn at the latest by December 2005. Attention is drawn to the possibility that 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 C
16、EN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour
17、g, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 3474:2005 3 Introduction This standard is part of the series of EN metallic material standards for aerospace applications. The general organization of this series is described i
18、n 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-P2024- T81 Sheet and strip 0,25 mm a 6 mm for aerospace application. 2 Normative references The following referenced documents are indispensable f
19、or the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 4258, Aerospace series Metallic materials General organization of standardization Links between type
20、s of EN standards and their use. EN 4400-2, Aerospace series Aluminium and aluminium alloy wrought products 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
21、, aluminium alloys and magnesium alloys. 1) 1) Published as AECMA Prestandard at the date of publication of this standard. 4 1 Material designation Aluminium alloy AL-P2024- Others Element Si Fe Cu Mn Mg Cr Zn Ti Each Total Al min. 3,8 0,30 1,2 2 Chemical composition % max. 0,50 0,50 4,9 0,9 1,8 0,1
22、0 0,25 0,15 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(s) mm 0,25 a 6 5 Technical specification EN 4400-2 Delivery condition T31 T81 6.1 Heat treatment 490 C 500 C / WQ 40 C + approximately 1 % cold work + = ambient / t 5 d 490 C 5
23、00 C / WQ 40 C + approximately 1 % cold work + 185 C 195 C / 10 h t 14 h 6.2 Delivery condition code K U Use condition T81 T81 7 Heat treatment Delivery condition + 185 C 195 C / 10 h t 14 h Delivery condition Characteristics 8.1 Test sample(s) See EN 4400-2. 8.2 Test piece(s) See EN 4400-2. 8.3 Hea
24、t treatment Use condition 9 Dimensions concerned mm 0,25 a 6 10 Thickness of cladding on each face % 11 Direction of test piece LT 12 Temperature C Ambient 13 Proof stress R p0,2 MPa 400 14 Strength R m MPa 460 15 Elongation A % A 50 mm 5 16 T Reduction of area Z % 17 Hardness 18 Shear strength R c
25、MPa 19 Bending k 20 Impact strength 21 Temperature C 22 Time h 23 Stress aMPa 24 Elongation a % 25 Rupture stress R MPa 26 C Elongation at rupture A % 27 Notes (see line 98) EN 3474:2005 5 44 External defects See EN 4400-2. 82 Batch uniformity See EN 4400-2. 5 T31 T81 7 Electrical conductivity MS/m
26、17,5 (Typical value) 23,0 (Typical value) or 7 125 (Typical value) 140 (Typical value) 16 per product 20 per product Hardness HB 24 per batch 30 per batch 95 Marking inspection See EN 4400-2. 96 Dimensional inspection See EN 4400-2. 98 Notes 99 Typical use EN 3474:2005 6 100 Product qualification Se
27、e EN 4400-2. Qualification programme to be agreed between manufacturer and purchaser. EN 3474:2005 blankBS EN 3474:2005 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view
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