1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 31 March 2003 prEN 2703 Edition P 1 March 2003 Comments should be sent within six months after the date of publication to AECMA-STAN ICs: Descriptors: ENGLISH VERSION Supersedes edition 1 May 1995 Aerospace series Al um i ni um a
2、lloy AL-P2024- T4 or T42 Clad sheet and strip 0,3 mm a 6 mm Srie arospatiale Alliage daluminium AL-P2024- T4 ou T42 Tles et bandes plaques 0,3 mm i ai 6 mm Luft- und Raumfahrt Aluminiumlegierung AL-P2024- T4 oder T42 Bleche und Bnder, plattiert 0,3 mm i ai 6 mm This “Aerospace Series“ Prestandard ha
3、s been drawn 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 comme
4、nts. Subsequent 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
5、 be submitted 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 2703: 2003 Foreword This standard was reviewed by the Domain Technical Coordinator of AECMA-STANS Metallic Material Doma
6、in. After 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 2703: 2003 O Introduction This standard is part of the series of EN metallic material standards for ae
7、rospace 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: Aluminium alloy AL-P2024- T4 or T42 Clad sheet and strip 0,3 mm a 6 mm for aerospace appl
8、ication. 2 Normative references This European Standard incorporates by dated or undated refere ce provisia s from other publicatic S. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to o
9、r revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 4258, Aerospace series - Metallic materials - General organization of standardization -
10、 Links between types 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
11、: Specific rules for aluminium, aluminium alloys and magnesium alloys 1 ) 1) Published as AECMA Prestandard at the date of publication of this standard 1 - 2 Material designation Aluminium alloy AL-P2024- si - 0,50 Others Each Total Fe Cu Mn Mg Cr Zn Ti AI - 3,8 0,30 1,2 - - - - - 0,50 4,9 0,9 1,8 0
12、,lO 0,25 0,15 0,05 0,15 Base Form Method of production Limit dimension(s) mm Technical specification Clad sheet and strip Rolled 0,3 a 6 EN 4400-2 Delivery condition code Use condition Heat treatment F A U T4 T42 Delivery condition Delivery condition + 490 OC e 500 OC 1 WQ e 40 OC + O= ambient It 2
13、5 d Thickness of cladding on each face 24 22 22 24 24 22 % Direction of test piece Temperature 0 “C Proof stress Rp0,2 MPa LT LT LT LT LT LT Ambient Ambient Ambient Ambient Ambient Ambient 110 110 110 2 235 2 235 2 250 - 0,5: a= 180“ - - - 1,5: a= 180“ 2: a= 180“ - Temperature e OC Rupture stress El
14、ongation at ru otu re OR MPa - A % - Chemical composition % I Element I min. I max. I - Method of melting I Delivery condition I F I O I T4 Heat treatment I + 490 OC e 500 OC 1 WQ e 40 OC + O= ambient It 2 5 d Characteristics I See EN 4400-2. 3.1 I Test sample(s) I I See EN 4400-2. 3.2 I Test piece(
15、s) I 3.3 I Heat treatment I Delivery condition: O I Use condition: T4 or T42 9 IDimensionsconcerned I mm I 0,3a1,6 I 1,6a3,2 I 3,2a6 I 0,3a0,8 I 0,8a1,6 I 1,6a6 11 12 13 - - 161 IReductionofareaI Z I % I - I - I - I - 17 I Hardness 1-1-1-1 - 18 19 20 21 - - - 41 I 22 I ITime Ihl 41 I 24 I -1 Elongat
16、ion I a I % I I dl I I - 27 I Notes (see line 98) I ixternal defects - Iiffusion in the cladding See EN 4400-2. 3adding chemical :omposition % - - 3atch uniformity See EN 4400-2. See EN 4400-2. Marking inspection Iimensional inspection Element min. max. Votes Others Each Total Si Fe Cu Mn Mg Zn Ti A
17、I - - - 99,50 - - - - - - 0,25 0,40 0,05 0,05 0,05 0,07 0,05 0,03 - - rypical use Element min. max. Others Each Total Si+Fe Cu Mn Mg Zn V Ti AI - - - 99,45 - - - - - - 0,55 0,05 0,05 0,05 0,05 0,05 0,03 0,03 - - Electrical conductivity Material designation See EN 4400-2. Aluminium AL-P1050A Material designation Aluminium AL-PI 145- See EN 4400-2. T4 See EN 4400-2. See EN 4400-2. 100 See EN 4400-2. Qualification programme to be agreed between manufacturer and purchaser. Page 6 prEN 2703: 2003 - Product qualification
