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1、BRITISH STANDARD AEROSPACE SERIES BS EN 4291:2005 Aluminium alloy AL-P8090 Forging stock The European Standard EN 4291:2005 has the status of a British Standard ICS 49.025.20 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:32:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 4291:2005
2、This British Standard was published under the authority of the Standards Policy and Strategy Committee on 6 October 2005 BSI 6 October 2005 ISBN 0 580 46318 4 National foreword This British Standard is the official English language version of EN 4291:2005. The UK participation in its preparation was
3、 entrusted by Technical Committee ACE/61, Metallic materials for aerospace purposes, to Subcommittee ACE/61/-/24, Light alloys, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standard
4、s which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This pu
5、blication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internat
6、ional/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title pa
7、ge, pages 2 to 6, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:32:00 GMT+00:00 2006, Uncontro
8、lled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4291 June 2005 ICS 49.025.20 English version Aerospace series - Aluminium alloy AL-P8090 - Forging stock Srie arospatiale - Alliage daluminium AL-P8090 - Produits destins la forge Luft- und Raumfahrt - Aluminiumlegierung AL-P809
9、0 - Schmiedevormaterial This European Standard was approved by CEN on 22 April 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists a
10、nd 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 (English, French, German). A version in any other language made by translation under the responsib
11、ility 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
12、Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Br
13、ussels 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4291:2005: E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:32:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 4291:2005 2 Foreword This document (EN 4291:2005)
14、 has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the memb
15、er countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2005, and conflicting national standards shall be withdrawn at the latest by Decem
16、ber 2005. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards or
17、ganizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
18、 Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:32:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 4291:2005 3 Introduction This standard is part of the series of EN metallic material standards for aerospace applications. The g
19、eneral organization of this series is described in EN 4258. This standard has been prepared in accordance with EN 4500-2. 1 Scope This standard specifies the requirements relating to: Aluminium alloy AL-P8090- Forging stock for aerospace application. 2 Normative references The following referenced d
20、ocuments are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2082-2, Aerospace series Aluminium alloy forging stock and forgings Tech
21、nical specification Part 2: Forging stock. EN 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards and their use. EN 4500-2, Aerospace series Metallic materials Rules for drafting and presentation of material standards Part 2: Specific
22、 rules for aluminium, aluminium alloys and magnesium alloys. 1) EN 6018, Aerospace series Test methods for metallic materials Determination of density according to displacement method. 1) 1) Published as AECMA Prestandard at the date of publication of this standard. Licensed Copy: sheffieldun sheffi
23、eldun, na, Sat Nov 04 08:32:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 1 Material designation Aluminium alloy AL-P8090- Others Element Si Fe Cu Mn Mg Cr Zn Li Zr Ti Each Total Al min. 1,0 0,6 2,2 0,04 2 Chemical composition % max. 0,20 a 0,30 a 1,6 0,10 1,3 0,10 0,25 2,7 0,16 0,10 0,05 a 0,15 B
24、ase 3 Method of melting 4.1 Form Ingot or billet 4.2 Method of production Cast 4.3 Limit dimension(s) mm a or D 500 5 Technical specification EN 2082-2 Delivery condition O3 6.1 Heat treatment 6.2 Delivery condition code U Use condition O3 7 Heat treatment Delivery condition Characteristics 8.1 Test
25、 sample(s) Forged bar b 8.2 Test piece(s) See EN 2082-2. 8.3 Heat treatment T89 (See line 29) 9 Dimensions concerned mm 10 Thickness of cladding on each face % 11 Direction of test piece L LT ST 12 Temperature C Ambient Ambient Ambient 13 Proof stress Rp0,2 MPa 330 c 305 c 300 c 14 Strength Rm MPa 4
26、30 c 420 c 380 c 15 Elongation A % 3 c 3 c 1 c 16 T Reduction of area Z % 17 Hardness 18 Shear strength Rc MPa 19 Bending k 20 Impact strength 21 Temperature C 22 Time h 23 Stress a MPa 24 Elongation a % 25 Rupture stress R MPa 26 C Elongation at rupture A % 27 Notes (see line 98) a, b, c EN 4291:20
27、05 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:32:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 29 Reference heat treatment Delivery condition + hand forged + 525 C 535 C / WQ 35 C + 2 % cold deformed 5 % + 170 C 185 C / 20 h t 30 h 34 Grain size G 0,5 44 External defects See EN 2082
28、-2. 61 Internal defects See EN 2082-2. 68 Density 1 EN 6018 2 The “capability clause“ applies 7 2,56 kg/dm3 95 Marking inspection See EN 2082-2. 96 Dimensional inspection See EN 2082-2. 98 Notes a Chemical analyses taken from the molten metal stream shall exhibit the following maximum impurity level
29、s: Fe 0,06 %, Si 0,06 %, Na 9 ppm., Ca 120 ppm. b Forging dimensions and manufacturing parameters shall be as agreed between ingot supplier and forgemaster. c The “capability clause“ applies. 99 Typical use EN 4291:2005 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:32:00 GMT+00:00 2006,
30、Uncontrolled Copy, (c) BSI 6 100 Product qualification Qualification programme to be agreed between manufacturer and purchaser. EN 4291:2005 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 04 08:32:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sa
31、t Nov 04 08:32:00 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 4291:2005 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the internat
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