1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58The European Standard EN 3872:2005 has the status of a British StandardICS 49.025.20Aluminium alloy
2、 AL-R39002-H112 Die forgings a k200 mmBRITISH STANDARD AEROSPACE SERIESBS EN 3872:2005BS EN 3872:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 4 October 2005 BSI 4 October 2005ISBN 0 580 46311 7Cross-referencesThe British Standards whic
3、h 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 publicati
4、on 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.Summary of pagesThis document comprises a front cover, an inside front cover, the
5、EN title page, 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 publicationAmd. No. Date CommentsA list of organizations represented on this subcommittee can be obtained on requ
6、est to its secretary.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.National forewordThis British Standard is the official English language version of EN 3872:2005. The UK
7、 participation in its preparation was entrusted by Technical Committee ACE/61, Metallic materials for aerospace purposes, to Subcommittee ACE/61/-/24, Light alloys, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any
8、EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3872 June 2005 ICS 49.025.20 English version Aerospace series - Aluminium alloy AL-R39002-H112 - Die forgings - a 200 mm Srie arospatiale - Alliage daluminium AL-R39002-H112 -Pices matrices - a 200 mm Luft- und Raumfahrt - Aluminiumlegierung AL-R3
9、9002-H112 - Gesenkschmiedestcke - a 200 mm 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.
10、 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 (English, French, German). A version in any other language made by translation
11、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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
12、 Iceland, Ireland, 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 Sta
13、ssart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3872:2005: E2 Foreword This document (EN 3872:2005) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-ST
14、AN). 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 member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the st
15、atus 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 December 2005. Attention is drawn to the possibility that some of the elements of this document may be the
16、 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 organizations of the following countries are bound to implement this European Standard: Austria, Belgiu
17、m, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 3872:20053 Introduction This standar
18、d 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 specifies the requirements relating to: Aluminium alloy AL-R39002
19、 H112 Die forgings a 200 mm for aerospace application. 2 Normative references The following referenced documents 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 (includ
20、ing any amendments) applies. EN 2082-3, Aerospace series Aluminium alloy forging stock and forgings Technical specification Part 3: Pre-production and production forgings. EN 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards and the
21、ir use. EN 4292, Aerospace series Aluminium alloy AL-R39002 Forging stock. 1)EN 4500-2, Aerospace series Metallic materials Rules for drafting and presentation of material standards Part 2: Specific rules for aluminium, aluminium alloys and magnesium alloys. 1)EN 6018, Aerospace series Test methods
22、for metallic materials Determination of density according to displacement method. 1) 1) Published as AECMA Prestandard at the date of publication of this standard. EN 3872:20054 1 Material designation Aluminium alloy AL-R39002 Others Element C Si O Fe Mg Li Each Total Al min. 0,25 0,20 4,0 1,2 2 Che
23、mical composition % max. 0,45 0,20 0,7 0,30 5,5 1,4 0,05 0,15 Base 3 Method of melting 4.1 Form Die forgings 4.2 Method of production Forged from forging stock EN 4292 4.3 Limit dimension(s) mm a 200 5 Technical specification EN 2082-3 Delivery condition H112 6.1 Heat treatment 6.2 Delivery conditio
24、n code U Use condition H112 7 Heat treatment Delivery condition Characteristics 8.1 Test sample(s) See EN 2082-3. 8.2 Test piece(s) See EN 2082-3. 8.3 Heat treatment Use condition. 9 Dimensions concerned mm a 200 10 Thickness of cladding on each face % 11 Direction of test piece L LT ST 12 Temperatu
25、re C Ambient Ambient Ambient 13 Proof stress Rp0,2MPa 370 360 350 14 Strength RmMPa 455 445 435 15 Elongation A % 6 5 3 16 T Reduction of area Z % 17 Hardness 18 Shear strength RcMPa 19 Bending k 20 Impact strength 21 Temperature C 22 Time h 23 Stress aMPa 24 Elongation a % 25 Rupture stress RMPa 26
26、 C Elongation at rupture A % 27 Notes (see line 98) EN 3872:20055 39 Stress corrosion See EN 2082-3. 2The “capability clause“ applies 3a 25 mm 6 = 290 MPa 7t 20 d See EN 2082-3. 40 Fracture toughness KIC7 Dimensions mm L-T MPa m T-L MPa m S-L MPa m a 200 26 25 24 44 External defects See EN 2082-3.61
27、 Internal defects See EN 2082-3.68 Density 1 EN 6018 2 The “capability clause“ applies 7 2,60 kg/dm382 Batch uniformity See EN 2082-3. 7 150 (typical value) Hardness HB 10 per product 15 per batch 95 Marking inspection See EN 2082-3. 96 Dimensional inspection See EN 2082-3. 98 Notes 99 Typical use E
28、N 3872:20056 100 Product qualification See EN 2082-3. Qualification programme to be agreed between manufacturer and purchaser. EN 3872:2005blankBS EN BSI389 Chiswick High RoadLondonW4 4AL3872:2005BSI British Standards InstitutionBSI is the independent national body responsible for preparing British
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