1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 31 March 2003 prEN 2802 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 February 1999 Aerospace series Al um i
2、ni um alloy AL-P7475- T761 Sheet and strip 0,6 mm las 6 mm Srie arospatiale Alliage daluminium AL-P7475- T761 Tles et bandes 0,6 mm I ai 6 mm Luft- und Raumfahrt Aluminiumlegierung AL-P7475- T761 Bleche und Bnder 0,6 mm I a I 6 mm This “Aerospace Series“ Prestandard has been drawn up under the respo
3、nsibility 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 publicat
4、ion 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 Europe
5、an Standard 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 permi
6、tted without license from IHS-,-,-Page 2 prEN 2802: 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, t
7、his 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 2802: 2003 O Introduction This standard
8、 is 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-P7475-
9、T761 Sheet and strip 0,6 mm a6 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 hereaft
10、er. 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 m
11、aterials - 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 draf
12、ting 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
13、license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 4 prEN 2802: 2003 3.3 9 11 Form Sheet and strip Method of production Rolled Limit dimension(s) mm 0,6 a 6 Technical specification EN 4400-2 Heat treatment Use condition Dimensions concerned mm 0
14、,6 a 6 each face Direction of test piece LT Thickness of cladding on % - I T761 I 3.1 I Delivery condition Reductionofarea Heat treatment Z % - 460 OC es485 “CaIWQ 40 “C + 115 OC 6% 125 “C I3 h t 6 h + 158 “C 6% 178 “CI 14 h t 70 h Hardness - Shear strength R, MPa - Bending k- - Impact strength - Te
15、mperature e OC - - Time h Stress oa MPa - Elongation a% - Rupture stress OR MPa - rupture C Elongation at A % - , Notes (see line 98) a I U I 3.2 I Delivery condition code I I T761 I 7 I Use condition I I I Heat treatment I Delivery condition I Characteristics See EN 4400-2. 3.1 I Test sample(s) I 3
16、.2 I Test piece(s) I See EN 4400-2. 17 18 19 - - - - 21 22 23 24 25 26 27 - - - - - - Temperature I 0 I “C I Ambient Proof stress I Rp0,2 I MPa I 2 415 Strength I Rm I MPal 2 490 Elongation I A I % I bmm 2 9 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS un
17、der license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ilectrical conductivity - 3acture toughness (KJ See EN 4400-2. ixternal defects Votchlyield ratio (RJRp0,2) y 2 22,7 MSlm 22,0 MSlm y 22,7 MSlm ixfoliation corrosion Acceptable Acceptable if R,o,
18、z 475 MPa andlor if exfoliation corrosion tests meet the acceptance criteria: see line 49. 3atch uniformity - Marking inspection y 22,O MSlm Not acceptable See EN 4400-2. Iimensional inspection Votes 7 rypical use T-L Dimensions (mm) MPa 1,0 a 3,2 3,2 a 6 7 2 95 2 85 - - See EN 4400-2. See EN 4400-2
19、. - 7 See EN 4400-2. Electrical conductivity See EN 4400-2. 6 20 per product -I See EN 4400-2. A 30 per batch The “capability clause“ shall apply unless testing is required to determine acceptance: see line 32. In that case, frequency of testing shall be agreed between the manufacturer and purchaser
20、. 71 Exfoliation corrosion shall not be greater than that of grade EB or Hardness See EN 4400-2. -I -I See EN 4400-2. a This temperature range may be extended to 525 “C (particularly to facilitate the use of a continuous solution heat treatment furnace) with the proviso that appropriate prior homoge
21、nisation heat treatments are applied to the rolling ingot andlor sheetlstrip to avoid incipient melting (overheating). -I Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without li
22、cense from IHS-,-,-100 See EN 4400-2. Qualification programme to be agreed between manufacturer and purchaser. Page 6 prEN 2802: 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-,-,-
