1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 15 May 2003 prEN 4247 Edition P 2 May 2003 Comments should be sent within six months after the date of publication to AECMA-STAN ICs: Descriptors: ENGLISH VERSION Supersedes edition P 1 June 1995 Aerospace series Al um i ni um al
2、loy AL-P2024- T42 Plate 6 mm a 140 mm Srie arospatiale Alliage daluminium AL-P2024- T42 Tles paisses 6 mm as 140 mm Luft- und Raumfahrt Aluminiumlegierung AL-P2024- T42 Platten 6 mm as 140 mm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STAN (The European A
3、ssociation 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 of this Prestandard, the technical
4、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 Standard to CEN (European Committee
5、for Standardization) for formal vote. Metallic Material Domain I I Copyright 2003 O by AECMA-STA1 Page 2 prEN 4247: 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
6、 of AECMA-STAN defined in AECMA- STANS General Process Manual, this standard has received approval for Publication. Page 3 prEN 4247: 2003 O Introduction This standard is part of the series of EN metallic material standards for aerospace applications. The general organization of this series is descr
7、ibed 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- T42 Plate 6 mm a 140 mm for aerospace application. 2 Normative references This European Standard incorporates by dated or undated ref
8、ere 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 or revisions of any of these publications apply to this European Standard only when incorpor
9、ated 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 - Links between types of EN standards and their use EN 4400-1, Aerospace series - Aluminium
10、and aluminium alloy wrought products - Technical specification - Part I: Plate 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 Prest
11、andard at the date of publication of this standard Page 4 prEN 4247: 2003 Hardness Shear strength R, MPa Bending k- - 3.1 - 3.2 7 - - - 3.1 3.2 3.3 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 - - - - - - - - - - - - - - - - - - - - - - - - - Form Plate Method of production Rolled Limit d
12、imension(s) mm 6 a 140 Technical specification EN 4400-1 - Elongation Rupture stress I F I Delivery condition a% - oR MPa - I - I Heat treatment Elongation at rupture I F I Delivery condition code A % - I T42 I Use condition Notes (see line 98) Heat treatment - Delivery condition + 490 “C O 500 “C I
13、 WQ O 40 “C + O= ambient It 2 5d Characteristics Test sample(s) I See EN 4400-1. Reductionofarea Z % - - Impact strength I I Temperature I O I “C I - I Time Ihl ixternal defects - - Marking inspection Iimensional inspection See EN 4400-1. See EN 4400-1. Votes rypical use Page 5 prEN 4247: 2003 See EN 4400-1. -I -I 100 See EN 4400-1. Qualification programme to be agreed between manufacturer and purchaser. Page 6 prEN 4247: 2003 - Product qualification
