1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 28 February 2003 prEN 3474 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 December 1998 Aerospace series Al um
2、 i ni um alloy AL-P2024- T81 Sheet and strip 0,25 mm I a I 6 mm Srie arospatiale Alliage daluminium AL-P2024- T8 1 Tles et bandes 0,25mmiai6mm Luft- und Raumfahrt Aluminiumlegierung AL-P2024- T8 1 Bleche und Bnder 0,25mmiai6mm This “Aerospace Series“ Prestandard has been drawn up under the responsib
3、ility 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. Subsequent to the publication
4、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 submitted as a draft European S
5、tandard to CEN (European Committee for Standardization) for formal vote. Metallic Material Domain I I Copyright 2003 O by AECMA-STA1 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted
6、 without license from IHS-,-,-Page 2 prEN 3474: 2003 Foreword This standard was reviewed by the Domain Technical Coordinator of AECMA-STANS Metallic Material Domain. After inquiries and votes carried out in accordance with the rules of AECMA-STAN defined in AECMA- STANS General Process Manual, this
7、standard has received approval for Publication. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 3 prEN 3474: 2003 O Introduction This standard is
8、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: Aluminium alloy AL-P2024- T8 1
9、 Sheet and strip 0,25 mm a 6 mm for aerospace application. 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
10、. For dated references, subsequent amendments to or 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 mat
11、erials - 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: Sheet and strip 1) EN 4500-2, Aerospace series - Metallic materials - Rules for drafti
12、ng 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 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under li
13、cense with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 4 prEN 3474: 2003 Heat treatment Delivery condition code Use condition Method of melting I 490 OC s es 500 OC 1 WQ es 40 OC 490 OC s es 500 OC 1 WQ es 40 OC + approximately 1 % cold work + O= ambi
14、ent It 2 5 d + approximately 1 % cold work + 185 Cs 0s 195 “CI 10 hsts 14 h K U T81 T81 Form Sheet and strip Method of production Rolled Limit dimension(s) mm 0,25 I a I 6 Technical specification EN 4400-2 Thickness of cladding on each face Delivery condition I T3 1 I T81 % - Direction of test piece
15、 Temperature e OC Proof stress Rp0,2 MPa Heat treatment LT Ambient 2 400 Delivery condition + 185 “C 6% 195 “C I 10 h t 14 h I I Shear strength Bending Delivery condition R, MPa - k- - Characteristics Impact strength Temperature e OC Time h I See EN 4400-2. 3.1 I Test sample(s) I - - - 3.2 I Test pi
16、ece(s) I See EN 4400-2. I Stress Elongation Rupture stress Elongation at rupture C 3.3 I Heat treatment I Use condition I oa MPa - a% - OR MPa - A % - 9 I Dimensions concerned I mm I 0,25 I a I 6 11 12 13 - - 14 I T I Strength I R, I MPal 2 460 15 I I Elongation I A I % I homm 2 5 I6 I I Reductionof
17、area I Z I % I - - 17 I Hardness I 18 19 20 21 22 - - - - 23 24 25 26 - - - I - 27 I Notes (see line 98) I Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-
18、,-,-ixternal defects - 3atch uniformity See EN 4400-2. Marking inspection Iimensional inspection - 5 Votes See EN 4400-2. T31 T81 rypical use Hard ness 125 (Typical value) 6 16 per product A 24 per batch 140 (Typical value) 6 20 per product A 30 per batch HB - - I Electrical conductivity I y I MSlm
19、I 17,5 (Typical value) I 23,O (Typical value) See EN 4400-2. See EN 4400-2. or -I -I Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-100 See EN 4400-2.
20、 Qualification programme to be agreed between manufacturer and purchaser. Page 6 prEN 3474: 2003 - Product qualification Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
