1、BRITISH STANDARD AEROSPACESERIES BSEN 2128:1992 Aluminium alloy AL-P7075-T7351 Drawn bars 6mmk a or Dk 75mm The European Standard EN2128:1992 has the status of a British Standard UDC 669.715-124-42:629.7BSEN2128:1992 This British Standard, having been prepared under the directionof the Aerospace Sta
2、ndards Policy Committee, waspublished under the authorityof the Standards Board and comes into effect on 15November1992 BSI12-1999 The following BSI references relate to the work on this standard: Committee referenceACE/24 Draft for comment91/83248DC ISBN 0 580 20625 4 Cooperating organizations The
3、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 Standardiseringsraad
4、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 Nazionale Italiano d
5、i 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 Sverige Switzerland A
6、ssociation suisse de normalisation UnitedKingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN2128:1992 BSI 12-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN2128 3 National annex NA (informat
7、ive) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back coverBSEN2128:1992 ii BSI 12-1999 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version o
8、f EN2128:1992 “Aerospace series Aluminium alloy AL-P7075-T7351 Drawn bars6mmk a or Dk 75mm”, published by the European Committee for Standardization (CEN). EN2128 was produced as a result of international discussion in which the UK took an active part. A British Standard does not purport to include
9、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 front cover, pagesi an
10、dii, theEN title page, pages2 to6, 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 EUROPISCHE NORM EN2128 Sep
11、tember1992 UDC: 669.715-124-42:629.7 Descriptors: Aircraft industry, metal bars, aluminium alloys, specifications, chemical composition, dimensions, characteristics English version Aerospace series AluminiumalloyAL-P7075-T7351 Drawn bars6mmk a or Dk 75mm Srie arospatiale Alliage daluminium AL-P7075-
12、T7351 Barres tires6mmk a ou Dk 75mm Luft- und Raumfahrt Aluminiumlegierung AL-P7075-T7351 Gezogene Stangen 6mmk a oder Dk 75mm This European Standard was approved by CEN on1992-03-09. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
13、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 Standard exists in three official versions
14、 (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 standards bodies of Austria, Belgium, Denm
15、ark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland andUnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-
16、1050 Brussels 1992 Copyright reserved to CEN members Ref.Nr.EN2128:1992EEN2128:1992 BSI 12-1999 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association,
17、this Standard hassuccessively 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 ofa national standard, either by publication of an identical text or by endo
18、rsement, 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, Denmark, Finland, France, Germany, Greece, I
19、celand, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. Contents Page Foreword 2 0 Introduction 3 1 Scope 3 2 References 3EN2128:1992 BSI 12-1999 3 0 Introduction For the use of this standard, see EN2500-2. 1 Scope This standard specifies the
20、requirements relating to drawn bars in aluminium alloy AL-P7075-, for use in theT7351 condition,6mmk a or Dk 75mm, for aerospace applications. 2 References This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at t
21、he 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. For undated references the latest edition of th
22、e publication referred to applies. EN2004-1, Aerospace series Test methods for aluminium and aluminium alloy products Part1:Determination of electrical conductivity of wrought aluminium alloys 1) . EN2044, Round aluminium alloy bars Drawn Dimensions Tolerance h11 Aerospace series 1) . EN2045, Square
23、 aluminium alloy bars Drawn Dimensions Tolerance h11 Aerospace series 1) . EN2046, Hexagonal aluminium alloy bars Drawn Dimensions Tolerance h11 Aerospace series 1) . EN2070-3, Aerospace series Aluminium and aluminium alloy wrought products Technical specification Part3: Bars and sections. EN2500-2,
24、 Aerospace series Instructions for the drafting and use of metallic material standards Part2: Specific requirements for aluminium, aluminium alloys and magnesium alloys 2) . EN2600, Aerospace series Designation of metallic semi-finished products Rules 2) . 1) Published as AECMA standard at the date
25、of publication of this standard. 2) Published as AECMA pre-standard at the date of publication of this standard.EN2128:1992 4 BSI 12-1999 1 Material designation Aluminium alloy AL-P7075- 2 Chemical composition Element Si Fe Cu Mn Mg Cr Zn Ti+Zr Ti Others Al Each Total % min. 1,2 2,1 0,18 5,1 Base ma
26、x. 0,40 0,50 2,0 0,30 2,9 0,28 6,1 0,25 0,20 0,05 0,15 3 Method of melting 4 Form Method of production Limit dimensions(mm) Bar Drawn 6k a or Dk 75 5 5.1 Technical specification EN2070-3 5.2 Dimensional standards EN2044, EN2045, EN2046 6 6.1 Delivery condition and heattreatment T651 460 CkFk 470 C/W
27、QFk 40 C +1%k stretchedk 3% +105 CkFk125 C/20hk tk 30h T7351 460 CkF 470 C/WQFk 40 C +1%k stretchedk 3% +105 CkFk 125 C/6hk tk 24h +172 CkFk182 C/5hk tk12h 6.2 Delivery condition code P U 7 Use condition and heat treatment T7351 Delivery condition +172 CkFk 182 C/5hk tk 12h Delivery condition Charac
28、teristics 8 Sample Test piece Heat treatment Use condition: T7351 9 Dimensions concerned mm 6k a or Dk 75 10 Thickness of cladding on each face % 11 Direction of test piece L 12 Temperature F C Ambient temperature 13 Proof stress R p0.2 MPa U 385 14 T Strength R m MPa U 470 15 Elongation A % U 11 1)
29、 16 Reduction of area Z % 17 Hardness 18 Shear strength R c MPa 19 Bending k 20 Impact strength 21 Temperature F C 22 Time h 23 Stress a MPa 24 C Elongation a % 25 Rupture stress R MPa 26 Elongation at rupture A % 27 Notes (see line98) 1)EN2128:1992 BSI 12-1999 5 32 Electrical 1 See EN2004-1 conduct
30、ivity 6 Measurement on specimen for tensile test (flat machined surface if necessary) *U 23,0 MS/m Acceptable 7 22,0 MS/mk* 23,0 MS/m Acceptable if R p0,2Lk R p0,2 min. L+85MPa or if* measured within15min of a re-solution treatment shows a loss of at least3,5MS/m from its initial value. Not acceptab
31、le otherwise. 22,0 MS/m Not acceptable 39 Stress corrosion 2 In case of dispute 3 a or DU 20mm 6 =75%R p0,2min. L/t=20d 44 External defects See EN2070-3 51 Macrostructure 7 Back end defects: see EN2070-3 61 Internal defects See EN2070-3 82 Batch uniformity 1 See EN2070-3 5 T651 T7351 7 Electrical co
32、nductivity =19 MS/m (typical value) See EN2070-3 or 7 Hardness 150HB (typical value) 140HB (typical value) k 20HB per product %k 30HB per batch k 20HB per product %k 30HB per batch 97 Designation See EN2600 98 Notes 1) A 50mmfor a or Dk 10mm 99 Typical use6 blankBSEN2128:1992 BSI 12-1999 National an
33、nex 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 Federation Aluminium S
34、tockholders 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 Magnesium Indust
35、ry 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 exception of EN
36、2004-1, EN2044, EN2045, EN2046, EN2500-2 and EN2600 for which no corresponding British Standards exist.BSEN 2128:1992 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 st
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