1、STD*AECMA PREN Li289-ENGL 1998 10LZ311 0014559 05T Edition approved for publication AECMA STANDARD NORME AECMA AECMA NORM Comments should be sent within six months after the date of Dublication to C5 Chairman prEN 4289 Edition P 1 April 1998 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTR
2、IES (AECMA) Gulledelle 94 - B-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. +32) 2 775 81 11 ICs: Descriptors: ENGLISH VERSION Aerospace series Aluminium alloy AL-P7 1 75- Forging stock Srie arospatiale Alliage daluminium AL-P7175- Produits destins la forge Luft- und Raumfahrt Aluminiumlegierung AL
3、-P7175- Schmiedevormaterial This “Aerospace Series“ Prestandard 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 Tech
4、nical Committee following comment by the Member countries. 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 sign
5、ature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Cornmittee for Standardization) for formal vote. 1998-04-30 AECMA Gulledelle 94 Mr Evetts I B-1200 BRUXELLES I ae
6、cma 1998 Page 3 prEN 4289: 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 specif
7、ies the requirements relating to: Aluminium alloy AL-P7175- 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 wrought products - Technical specification - Part 3: B
10、ar 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 o
11、rganization 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 a
12、t the date of publication of this standard Previouc page is blank Material designation 6.1 Aluminium alloy AL-P7175 Delivery condition 03 F Heat treatment - - Form Ingot or billet Rod, bar or section Method of production Cast Extruded Limit dimension(s) mm al I O00 a I 400 Technical specification EN
13、 2082-2 EN 2070-7 6.2 7 Delivery condition code U U Use condition 03 F Heat treatment Delivery condition Delivery condition 8.1 8.2 8.3 9 Characteristics Test sample(s) See EN 2082-2 See EN 2070-7 Test piece(s) See EN 2082-2 See EN 2070-7 Heat treatment T73 (see line 29) T73 (see line 29) Dimensions
14、 concerned mm See EN 2082-3 a or D s 400 Thickness of cladding on lo I each face - % - 1 I 12 13 14 15 16 - - - - I 17 I Hardness I - Direction of test piece L L Temperature e OC Ambient Ambient Proof stress %,2 MPa 2385 2385 l) T Strength R, MPa 2455 1) 2455 1) Elongation A% 27 1) 27 1) Reductionof
15、area Z % - I18 I Shearstrength I R, IMPal - eference heat treatment - - xternal defects See EN 2070-7 or EN 2082-2 See EN 2070-7 or EN 2082-2 lacrostructure iternal defects Marking inspection Dimensional inspection Notes Typical use Page 5 prEN 4289: 1998 Forged test pieces (cast stock) or delivery
16、condition (extruded section) + 460 “C 5 8s 480 “C / WQ Os 80 “C 2, + 100 “C c Oc 120 “C I6 h 5 t 5 24 h + 170 “C c Oc 182 “C I6 h 5 t 5 18 h See EN 2070-7 or EN 2082-2 See EN 2070-7 51 Extruded forging stock Back end defects : see EN 2070-7 Peripheral coarse grain : level A (as per EN 2070-3) See EN
17、 2070-7 or EN 2082-2 1) The “capability clause“ applies. 2) The use of quench additives or higher quenchant temperature shall be subject to agreement between manufacturer and purchaser. - -I Page 6 prEN 4289: 1998 Product qualification See EN 2043 Qualification programme to be agreed between manufacturer and purchaser.
