1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication prEN 4287 Edition P 1 April 7998 C5 Chairman Comments should be sent within six months after the date of Dublication to PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 8-1200 BRUXELLES - Tel.
2、 +32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ICs: Descriptors: ENGLISH VERSION Aerospace series Aluminium alloy AL-P7010- Forging stock Srie arospatiale Alliage daluminium AL-P7010- Produits destins la forge Luft- und Raumfahrt Aluminiumlegierung AL-P7010- Schmiedevormaterial This “Aerospace Series“ P
3、restandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee following comment by the Member count
4、ries. Subsequent to the publication 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 signature of the AECMA Standard Checking Centre INPS) and
5、 formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Mr Evetts 1998-04-30 AECMA Gulledelle 94 B-1200 BRUXELLES aecrna 1998 STDOAECMA PREN i287-ENGL II778 W 10II2311 001455
6、0 722 W Page 3 prEN 4287: 1998 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 has been prepared in accordance with EN 4500-2. 1 Scope This standard specifi
7、es the requirements relating to: Aluminium alloy AL-P701 O- Forging stock for aerospace applications. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the tex
8、t 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 revision. For undated references the latest edition of the publication referred to applie
9、s. EN 2043 EN 2070-3 EN 2070-7 EN 2082-2 EN 4258 EN 4500-2 Aerospace series - Metallic materials - General requirements for semi-finished product qualification (excluding forgings and castings) 1) Aerospace series - Aluminium and aluminium alloy wrough products -Technical specification - Part 3: Bar
10、 and section Aerospace series - Aluminium and aluminium alloy wrought products - Technical specification - Part 7: Wrought forging stock Aerospace series - Aluminium alloy forging stock and forgings - Technical specification - Part 2: Forging stock Aerospace series - Metallic materials - General org
11、anization of standardization - Links between types of EN standards and their use 1) 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 Prestandard at
12、the date of publication of this standard Previous page is blank I Material designation 2 Chemical composition % Element min max. 3 Method of melting 4.1 Form 4 2 Method of production 4 3 Limit dimension(s) mm 5 Technical specification Aluminium alloy AL-P7010- AI Others Each Total Si Fe Cu Mn Mg Cr
13、Ni Zn Zr TI - 1,5 - 2,l - - 5,7 0,lO - - - - Base 0,12 0,15 2.0 0,lO 2.6 0,05 0,05 6,7 0.16 0,06 0,05 0,15 - Ingot or billet Rod, bar or section Cast Extruded aorD11 O00 a or D 1400 EN 2082-2 EN 2070-7 Heat treatment 6.1 I Delivery condition 03 I F I Delivery condition I Delivery condition 6.2 7 Del
14、ivery condition code U U Use condition 03 F Characteristics 7 8.1 8.2 8.3 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 - - - - - - - - A - - - - - - - - - - - - - Test sample(s) Test piece(s) T74 (see line 29) I T74 (see line 29) I See EN 2082-2 See EN 2082-2 See EN 2070-7 See EN 2070-7 I
15、 Dimensions concerned I mm I See EN 2082-2 I a or D 1400 I Thickness of dadding on % - each face - I Direction of test piece I L I L I Temperature Proof stress Strength Elongation Reductionofarea T e OC Ambient Ambient %0,2 Mpa 2435 1) 2435 1) R, MPa 2495 1) 2495 ) A% 29 1) 29 1) Z % - Temperature e
16、 Time I - I Hardness I - C - h I Ishearstrength I R, IMPal - stress aa Elongation Rupturestress OR Elongation at rmture I I Bending lkl-1 - MPa - a% - MPa - A% - I - I Impact strength I C I Notes (see line 98) I 1) I STD-AECMA PREN q287-ENGL 1778 LO123LL 001Y552 7T5 1 I Reference heat treatment See
17、EN 2070-7 Extruded forging stock Back end defects : see EN 2070-7 Peripheral coarse grain : level A (as per EN 2070-3) External defects - - lacrostructure See EN 2070-7 or EN 2082-2 See EN 2070-7 or EN 2082-2 Iternal defects - - Marking inspection 1) The “capability clause“ applies. 2) The use of qu
18、ench additives or higher quenchant temperature shall be subject to agreement between manufacturer and purchaser. - Dimensional inspection Notes Typical use Page 5 prEN 4287: 1998 - Forged test pieces (cast stock) or delivery condition (extruded stock) + 470 “C I Qs 480 “C I WQ Qs 80 “C 2) + 110 “C s 6s 120 “C I8 h s t 5 24 h + 170 “C I QI 180 “C I8 h I t I 16 h I See EN 2070-7 or EN 2082-2 I See EN 2070-7 or EN 2082-2 STD-AECMA PREN 4287-ENGL 1778 1012311 0034553 Page 6 prEN 4287: 1998 Product qualification See EN 2043 Qualification programme to be agreed between manufacturer and purchaser.
