1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 14 March 2003 prEN 4204 Edition P 2 March 2003 Comments should be sent within six months after the date of publication to AECMA-STAN ICs: Descriptors: ENGLISH VERSION Supersedes edition P 1 November 1999 Aerospace series Aluminiu
2、m alloy AL-P8090- T841 Sheet 0,6 mm a 6 mm Srie arospatiale Alliage daluminium AL-P8090- T841 Tles 0,6 mm i ai 6 mm Luft- und Raumfahrt Aluminiumlegierung AL-P8090- T841 Bleche 0,6 mm i ai 6 mm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STAN (The European
3、 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 of this Prestandard, the technica
4、l 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 Committe
5、e for Standardization) for formal vote. Metallic Material Domain I I Copyright 2003 O by AECMA-STA1 Page 2 prEN 4204: 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 rul
6、es of AECMA-STAN defined in AECMA- STANS General Process Manual, this standard has received approval for Publication. Page 3 prEN 4204: 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 des
7、cribed 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-P8090- T84 1 Sheet 0,6 mm a 6 mm for aerospace application. 2 Normative references This European Standard incorporates by dated or undated
8、 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 or revisions of any of these publications apply to this European Standard only when inco
9、rporated 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 4400-2, Aerospace series - Alumin
10、ium 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, aluminium alloys and magnesium alloys 1) 1) Published
11、as AECMA Prestandard at the date of publication of this standard Page 4 prEN 4204: 2003 525 OC e 535 OC 1 WQ e 40 OC + 1,75 % controlled stretched 2,25 % + O= ambientlt 25 d 525 OC e 535 OC 1 WQ e 40 OC + 1,75 % controlled stretched 2,25 % + 142 “C O 148 “C I 23 h t 25 h Heat treatment Dimensions co
12、ncerned mm Use condition. 0,6 a 6 Thickness of cladding on each face % - Hardness Shear strength R, MPa Bending k- - - - - Elongation Rupture stress a% - oR MPa - Elongation at rupture A % - Aluminium alloy AL-P8090- I Material designation Method of melting I Form Sheet Method of production Rolled L
13、imit dimension(s) mm 0,6 a 6 Technical specification EN 4400-2 I T451 I T841 I 3.1 I Delivery condition Heat treatment I U I K I 3.2 I Delivery condition code I T841 I T841 I 7 I Use condition Heat treatment I Delivery condition + 142 “C O 148 “C I 23 h t 25 h I Delivery condition Characteristics -
14、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 - - - - - - - - - - - - - - - - - - - - - - Test sample(s) I See EN 4400-2. Test piece(s) I See EN 4400-2. LT I Direction of test piece Temperature I 0 I “C I Ambient Strength I Rm I MPal 2 405 Elongation I A I % I hmm 2 8 Reduction
15、ofarea Z % - - Impact strength I I Temperature I 0 I “C I - I Time Ihl Page 5 prEN 4204: 2003 - Microstructure See EN 4400-2. 3acture toughness (KJ 3 7 ixternal defects ixfoliation corrosion as4mm 4mmas6mm The degree of recrystallization shall be subject to agreement between the manufacturer and Dur
16、chaser Microstructure shall be fully recrystallized lensity - 3 3atch uniformity See EN 4400-2. T-L Marking inspection limensional inspection - - Votes See EN 4400-2. See EN 4400-2. rypical use 7 - Exfoliation corrosion shall not be greater than that of grade EB See EN 4400-2. 7 Electrical conductiv
17、ity y MSlm 8,5 (Typical value) 10,5 (Typical value) 71 - - 2 100 MPa & See EN 4400-2. See EN 4400-2. 61 t=48h 71 p s 2,56 kg dm -3 See EN 4400-2. -I T841 I T451 I - 51 95 (Typical value) s 20 per product s 30 per batch 115 (Typical value) s 20 per product s 30 per batch Hardness HB - I a Nas 10p.p.m., Cas120 p.p.m. -I 100 See EN 4400-2. Qualification programme to be agreed between manufacturer and purchaser. Page 6 prEN 4204: 2003 - Product qualification
