1、BRITISH STANDARD AEROSPACE SERIES BS EN 2381:1992 Aluminium alloy AL-P7009-T7452 Handforgings 40mm k a k 150 mm The European Standard EN 2381:1992 has the status of a British Standard UDC 669.715-4:621.73.042:629.7BSEN2381:1992 This British Standard, having been prepared under the directionof the Ae
2、rospace Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 15November 1992 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/24 Draft for comment 91/83245 DC ISBN 0 580 20610 6 Cooperating org
3、anizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries. Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standa
4、rdiseringsraad Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazi
5、onale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sveri
6、ge Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN2381:1992 BSI 01-2000 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN 2381 3 National
7、annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back coverBSEN2381:1992 ii BSI 01-2000 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English
8、language version of EN2381:1992 “Aerospace series Aluminium alloy AL-P7009-T7452 Hand forgings40mm k a k 150mm”, published by the European Committee for Standardization (CEN). EN 2381 was produced as a result of international discussion in which the UK took an active part. A British Standard does no
9、t purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside f
10、ront cover, pages i and ii, theEN title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE E
11、UROPISCHE NORM EN 2381 September 1992 UDC: 669.715-4:621.73.042:629.7 Key words: Aircraft industry, forgings, aluminium alloys, specifications, chemical composition, dimensions, characteristics English version Aerospace series Aluminium alloy AL-P7009-T7452 Hand forgings 40mm k a k 150mm Srie arospa
12、tiale Alliage daluminium AL-P7009-T7452 Picesforges 40mm k a k 150mm Luft- und Raumfahrt Aluminiumlegierung AL-P7009-T7452 Freiformschmiedestcke 40mm k a k 150mm This European Standard was approved by CEN on 1992-03-09. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
13、stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standa
14、rd exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standa
15、rds bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Centra
16、l Secretariat: rue de Stassart 36, B-1050 Brussels 1992 Copyright reserved to CEN members Ref. No. EN 2381:1992 EEN2381:1992 BSI 01-2000 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accord
17、ance with the rules of this Association, this Standard has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by
18、publication of an identical text or by endorsement, at the latest by March1993, and conflicting national standards shall be withdrawn at the latest by March1993. In accordance with the Common CEN/CENELEC Rules the following countries are bound to implement this European Standard: Austria, Belgium, D
19、enmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. Contents Page Foreword 2 0 Introduction 3 1 Scope 3 2 References 3EN2381:1992 BSI 01-2000 3 0 Introduction For the use of this standard, see EN2
20、500-2. 1 Scope This standard specifies the requirements relating to hand forgings in aluminium alloy AL-P7009-, for use in the T7452 1)condition, 40mm k a k 150mm, for aerospace applications. 2 References This European Standard incorporates by dated or undated reference, provisions from other public
21、ations. 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 revision
22、. For undated references the latest edition of the publication referred to applies. EN 2004-1, Aerospace series Test methods for aluminium and aluminium alloy products Part1:Determination of electrical conductivity of wrought aluminium alloys 2) . EN 2082-3, Aerospace series Aluminium alloy forging
23、stock and forgings Technical specification Part3: Pre-production and production forgings. EN 2500-2, Aerospace series Instructions for the drafting and use of metallic material standards Part2: Specific requirements for aluminium, aluminium alloys and magnesium alloys 3) . 1) Formerly designated T73
24、652. 2) Published as AECMA standard at the date of publication of this standard. 3) Published as AECMA pre-standard at the date of publication of this standard.EN2381:1992 4 BSI 01-2000 1 Material designation Aluminium alloy AL-P7009- 2 Chemical Element Si Fe Cu Mn Mg Cr Zn Ag Ti Others composition
25、Each Total Al % min. 0,6 2,1 0,10 5,5 0,25 Base max. 0,20 0,20 1.3 0,10 2,9 0,25 6,5 0,40 0,20 0,05 0,15 3 Method of melting 4 Form Method of production Limit dimensions (mm) Hand forgings 40 k a k 150 5 5.1 Technical specification EN 2082-3 5.2 Dimensional standards 6 6.1 Delivery condition and hea
26、t treatment T7452 460 C k F k 470 C/WQ F k 40 C +1% k compressed k 5% +115 C k F k 125 C/20h k t k 24h +167 C k F k 173 C/4h k t k 12h 7 6.2 Delivery condition code U Use condition and heat treatment T7452 Delivery condition Characteristics 8 Sample Test piece Heat treatment Cut from the forgings in
27、 accordance with the drawing and/or inspection schedule (location and direction) Use condition: T7452 9 Dimensions concerned mm 40 k a k 75 75 a k 125 125 a k 150 10 Thickness of cladding on each face % 11 Direction of test piece L LT ST L LT ST L LT ST 12 T Temperature F C Ambient temperature 13 Pr
28、oof stress R p0,2 MPa U 440 U 430 U 420 U 400 U 400 U 380 U 360 U 360 U 340 14 Strength R m MPa U 500 U 500 U 480 U 460 U 460 U 440 U 440 U 440 U 420 15 Elongation A % U 8 U 5 U 4 U 7 U 5 U 4 U 6 U 5 U 4 16 Reduction ofarea Z % 17 Hardness 18 Shear strength R c MPa 19 Bending k 20 Impact strength 21
29、 Temperature F C 22 C Time h 23 Stress B a MPa 24 Elongation a % 25 Rupture stress B R MPa 26 Elongation at rupture A % 27 Notes (see line98) EN2381:1992 BSI 01-2000 5 32 Electrical 1 See EN 2004-1 conductivity 6 Measurement on specimen for tensile test (flat machined surface if necessary) 7 U 22,0
30、MS/m Acceptable 21,5 MS/m k 22,0 MS/m Not acceptable unless a stress corrosion test gives satisfactory results 21,5 MS/m Not acceptable 39 Stress corrosion 2 In case of dispute or if 21,5 MS/m k 22,0 MS/m 3 a U 20mm 6 B =60% R p0,2 min. L/t = 20d 44 External defects See EN 2082-3 51 Macrostructure 7
31、 Grain flow: see EN 2082-3 61 Internal defect See EN 2082-3 82 Batch uniformity 1 See EN 2082-3 7 Electrical conductivity See EN 2082-3 or 7 Hardness 145 HB (typical value) k 20 HB per product % k 30 HB per batch 97 Designation See relevant drawing 98 Notes 99 Typical use6 blankBSEN2381:1992 BSI 01-
32、2000 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical Committee ACE/24 upon which the following bodies were represented. Aluminium Federa
33、tion Aluminium Stockholders Association Association of Light Alloy Refiners Limited BNF Metals Technology Centre British Forging Industry Association British Industrial Fasteners Federation British Investment Casting Trade Association Institute of British Foundrymen Light Metal Founders Association
34、Magnesium Industry Council Ministry of Defence Society of British Aerospace Companies Limited National annex NB (informative) Cross-references The British Standards corresponding to the European Standards referred to in the text are identical in number and title with those given in clause2, with the
35、 exception of EN2004-1 and EN2500-2 for which no corresponding British Standards exist.BS EN 2381:1992 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Euro
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