1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 15 May 2003 prEN 4286 Edition P 1 May 2003 Comments should be sent within six months after the date of publication to AECMA-STAN ICs: Descriptors: ENGLISH VERSION Aerospace series Aluminium alloy AL-P8090- T89 Die forgings a 125
2、mm Srie arospatiale Alliage daluminium AL-P8090- T89 Pices matrices as 125 mm Luft- und Raumfahrt Aluminiumlegierung AL-P8090- T89 Gesen kschmiedestcke as 125 mm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STAN (The European Association of Aerospace Indust
3、ries - 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 content shall not be changed t
4、o 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 for Standardization) for forma
5、l vote. Metallic Material Domain I I Copyright 2003 O by AECMA-STA1 Page 2 prEN 4286: 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 AECM
6、A- STANS General Process Manual, this standard has received approval for Publication. Page 3 prEN 4286: 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 described in EN 4258. This standard
7、 has been prepared in accordance with EN 4500-2. 1 Scope This standard specifies the requirements relating to: Aluminium alloy AL-P8090- T89 Die forgings a 125 mm for aerospace application. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other
8、 publications. 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 incorporated in it by amendment or r
9、evision. For undated references the latest edition of the publication referred to applies. EN 2082-3, EN 4258, EN 4291, EN 4500-2, EN 6018, Aerospace series - Aluminium alloy forging stock and forgings - Technical specification - Part 3: Pre-production and production forgings Aerospace series - Meta
10、llic materials - General organization of standardization - Links between types of EN standards and their use Aerospace series - Aluminium alloy AL-P8090- - Forging stock 1) Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 2: Specific rules for
11、aluminium, aluminium alloys and magnesium alloys 1) Aerospace series - Test methods for metallic materials - Determination of densify according to displacement method 1) 1) Published as AECMA Prestandard at the date of publication of this standard Page 4 prEN 4286: 2003 Heat treatment Dimensions con
12、cerned mm Aluminium alloy AL-P8090- I Material designation Use condition. a 125 Method of melting I Thickness of cladding on each face Form Die forgings Method of production Limit dimension(s) mm a 125 Forged from forging stock EN 4291 Technical specification EN 2082-3 % - I T89 I 3.1 I Delivery con
13、dition Reductionofarea Heat treatment Z % - 525 OC e 535 OC 1 WQ e 35 OC + 2 % cold deformed 5 % + 170 “C 6% 180 “C I20 h t 30 h Hardness Shear strength R, MPa Bending k- I U I 3.2 I Delivery condition code - - - I T89 I 7 I Use condition - Elongation Rupture stress I Heat treatment I Delivery condi
14、tion I a% - oR MPa - - 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 - - - - - - - - - - - - - - - - - - - - - - Elongation at rupture Characteristics A % - Test sample(s) I See EN 2082-3. Notes (see line 98) Test piece(s) I See EN 2082-3. - ST I LT I L I Direction of test piec
15、e Ambient I Ambient I Temperature I 0 I “C I Ambient 2 300 I 2 305 I Proof stress I RO, I MPa I 2 330 Strength I R, I MPal 2 430 I 2 420 I 2 380 Elongation I A I % I 23 I 23 I 21 - Impact strength I I Temperature I 0 I “C I - I Time Ihl Page 5 prEN 4286: 2003 Dimensions mm 20 a 125 3acture toughness
16、 (KIc) L-T T-L s-L MPa & MPa & MPa & 2 18 2 16 2 11 ixternal defects Macrostructure Hardness nternal defects 145 (Typical value) HB 6 20 per product A 30 per batch lensity 3atch uniformity Marking inspection limensional inspection Votes rypical use See EN 2082-3. See EN 2082-3. See EN 2082-3. See EN 2082-3. EN 6018 The “capability clause“ applies p 2,56 kg/dm3 See EN 2082-3. I I I Electrical conductivity 11,6 (Typical value) I I I or See EN 2082-3. See EN 2082-3. 100 Qualification programme to be agreed between manufacturer and purchaser. Page 6 prEN 4286: 2003 - Product qualification
