1、BRITISH STANDARD BS EN 586-2:1994 Aluminium and aluminium alloys Forgings Part 2: Mechanical properties and additional property requirements The European Standard EN 586-2:1994 has the status of a British Standard UDC 669.71:669.715.018.26:620.17BSEN 586-2:1994 This British Standard, having been pre
2、pared under the direction of the Non-ferrous Metals Standards Policy Committee, was published under the authority of the Standards Board and comesintoeffect on 15 October 1994 BSI 12-1998 The following BSI references relate to the work on this standard: Committee reference NFM/35 Draft for comment 9
3、1/47874 DC ISBN 0 580 23128 3 Cooperating organizations 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 Institu
4、t belge de normalisation Denmark Dansk Standard 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 Aut
5、hority of Ireland Italy Ente Nazionale 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 Sta
6、ndardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBS EN 586-2:1994 BSI 12-1998 i Contents Page Cooperating organizations Inside front cover National foreword ii Fo
7、reword 2 Text of EN 586-2 3 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back coverBSEN 586-2:1994 ii BSI 12-1998 National foreword This Part of BS EN 586 has been prepared under the direction of the Non-ferrous Meta
8、ls Standards Policy Committee and is the English language version of EN586-2:1994 Aluminium and aluminium alloys Forgings Part2Mechanical properties and additional property requirements. This Part of BS EN 586, together with BS EN586-1: Aluminium and aluminium alloys Forgings Part 1 Technical condit
9、ions for inspection and delivery, will supersede parts of BS1472:1972 Specification for wrought aluminium and aluminium alloys Forging stock and forgings. However, BS 1472:1972 will not be withdrawn until all the remaining standards which will replace it are published. These are as follows: BS EN 51
10、5:1993, Aluminium and aluminium alloys Wrought products Temper designations. BS EN 573-3, Aluminium and aluminium alloys Chemical composition and form of wrought products Part3 Chemical composition. BS EN 573-4, Aluminium and aluminium alloys Chemical composition and form of wrought products Part4 F
11、orms of products. BS EN 603-1, Aluminium and aluminium alloys Wrought forging stock Part1 Technical conditions for inspection and delivery. BS EN 603-2, Aluminium and aluminium alloys Wrought forging stock Part2 Mechanical properties. BS EN 604-1, Aluminium and aluminium alloys Cast forging stock Pa
12、rt1Technical conditions for inspection and delivery. The following standards are also concerned with aluminium and aluminium alloy forgings and forging stock but do not conflict with BS1472:1972. When published they will provide a complete set of normative specifications for tolerances on dimensions
13、 and form for forgings and forging stock. BS EN 586-3, Aluminium and aluminium alloys Forgings Part3 Tolerances on dimensions and form. BS EN 603-3, Aluminium and aluminium alloys Wrought forging stock Part3 Tolerances on dimensions and form. BS EN 604-2, Aluminium and aluminium alloys Cast forging
14、stock Part2Tolerances on dimensions and form. A British Standard does not 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 obligati
15、ons. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 8, 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 amend
16、ment table on theinside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 586-2 June 1994 UDC 669.71:669.715.018.26:620.17 Descriptors: Aluminium, aluminium alloys, forgings, specifications, characteristics, mechanical properties, resistivity, corrosion, resistance, stress corrosion,
17、tests, tables (data) English version Aluminium and aluminium alloys Forgings Part 2: Mechanical properties and additional property requirements Aluminium et alliages daluminium Picesforges Partie2:Caractristiquesmcaniques et autres caractristiques exiges Aluminium und Aluminiumlegierungen Schmiedest
18、cke Teil 2: Mechanische Eigenschaften und zustzliche Eigenschaftsanforderungen This European Standard was approved by CEN on 1994-06-16. 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
19、 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 (English, French, German). A version in any ot
20、her 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, Denmark, Finland, France, Germany, Greece, Iceland,
21、 Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN
22、members Ref. No. EN 586-2:1994 EEN586-2:1994 BSI 12-1998 2 Foreword This European Standard has been drawn up by CEN/TC132, Aluminium and aluminium alloys, whose secretariat is held by the Association Franaise de Normalisation (AFNOR). Within its programme of work, Technical Committee CEN/TC132 entru
23、sted CEN/TC132/WG3, Forgings and cast and wrought forging stock, to prepare the following standard: EN 586-2, Aluminium and aluminium alloys Forgings Part2: Mechanical properties and additional properties. This standard is part of a set of three standards. The other standards deal with: EN 586-1, Al
24、uminium and aluminium alloys Forgings Part1: Technical conditions for inspection and delivery. EN 586-3, Aluminium and aluminium alloys Forgings Part3: Tolerances on dimensions and form. This European Standard has been prepared under a mandate given to CEN by the Commission of the European Communiti
25、es and the European Free Trade Association, and supports essential requirements of ECDirective(s). 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 December1994, and conflicting national standards
26、shall be withdrawn at the latest by December1994. In accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Por
27、tugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Tensile testing 3 5 Mechanical properties 3 6 Electrical conductivity 3 7 Stress corrosion resistance 6 8 Additional properties 7 Annex A (normative) Rules for rounding
28、 8 Table 1 Alloy EN AW-2014 A1 Cu4SiMg 4 Table 2 Alloy EN AW-2024 A1 Cu4Mg1 4 Table 3 Alloy EN AW-5083 A1 Mg4,5Mn0,7 4 Table 4 Alloy EN AW-5754 A1 Mg3 5 Table 5 Alloy EN AW-6082 A1 Si1MgMn 5 Table 6 Alloy EN AW-7075 A1 Zn5,5MgCu 5 Table 7 Inspection lot acceptance criteria for alloy EN AW-7075-T73 a
29、nd T7352 forgings 6 Table 8 Typical electrical conductivity and hardness values 6EN586-2:1994 BSI 12-1998 3 1 Scope This part of EN 586 specifies the mechanical properties and additional properties of forgings in aluminium and aluminium alloys for general engineering applications. The chemical compo
30、sition and temper designations for these alloys are specified in EN573-3 and EN515 respectively. 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 text an
31、d 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 applies. E
32、N 515, Aluminium and aluminium alloys Wrought products Temper designations. EN 573-3, Aluminium and aluminium alloys Chemical composition and form of wrought products Part3: Chemical composition. EN 586-1, Aluminium and aluminium alloys Forgings Part1: Technical conditions for inspection and deliver
33、y. EN 2004-1, Aerospace series Test methods for aluminium and aluminium alloy, products Part1: Determination of electrical conductivity of wrought aluminium alloys. EN 10002-1, Metallic materials Tensile testing Part1: Method of test (at ambient temperature). ISO 6506:1981, Metallic materials Hardne
34、ss test Brinell test. ISO 6507-1:1982, Metallic materials Hardness test Vickers test Part 1: HV 5 to HV 100. ISO 6508:1986, Metallic materials Hardness test Rockwell test (scales A-B-C-D-E-F-G-H-K). ISO 9591:1992, Corrosion of aluminium alloys Determination of resistance to stress corrosion cracking
35、. 3 Definitions For the definition of the terms forging, inspection lot and test, see EN586-1 For the purposes of this standard the following definitions apply. 3.1 longitudinal direction direction parallel to the primary grainflow, designated L 3.2 transverse direction (die forgings) any direction
36、not parallel to the primary grainflow, designated T 3.3 long transverse direction (hand forgings) direction parallel to the major sectional dimension (width), designated LT 3.4 short transverse direction (hand forgings) direction parallel to the minor sectional dimension (thickness), usually the dir
37、ection of forging, designated ST 3.5 section size diameter of the largest sphere which can be inscribed within the forging, designated t 4 Tensile testing For the selection of specimens and orientation and preparation of test pieces, see EN586-1. Tensile testing shall be carried out in accordance wi
38、th EN10002-1. 5 Mechanical properties The mechanical properties of class A aluminium alloys are given inTable 1 to Table 6. Test results shall be rounded in accordance with the rules given in annexA. 6 Electrical Conductivity The electrical conductivity of forgings produced in ENAW-7075 material in
39、the T73 and T7352 temper conditions shall be determined in accordance with EN2004-1 as part of the inspection lot acceptance by testing the surface of the previously selected tensile test specimens to the criteria shown inTable 7.EN586-2:1994 4 BSI 12-1998 Table 1 Alloy EN AW-2014 A1 Cu4SiMg Table 2
40、 Alloy EN AW-2024 A1 Cu4Mg1 Table 3 Alloy EN AW-5083 A1 Mg4,5Mn0,7 Product Temper Section size Test direction Tensile strength Proof stress Elongation t R m R p0,2 A mm MPa MPa % min. min. min. All forgings T4 t # 150 L 370 270 11 Die forgings T6 t # 50 L 440 380 6 or T 430 370 3 50 t # 100 L 440 37
41、0 6 or T 430 360 3 Hand forgings T652 t # 75 L 440 380 8 or LT 430 370 4 or ST 420 360 3 75 t # 150 L 420 370 7 or LT 420 360 4 or ST 410 350 3 150 t # 200 L 410 360 6 or LT 410 350 3 or ST 400 340 2 Product Temper Section size Test direction Tensile strength Proof stress Elongation t R m R p0,2 A m
42、m MPa MPa % min. min. min. All forgings T4 t # 100 L 420 260 8 Product Temper Section size Test direction Tensile strength Proof stress Elongation t min. R m R p0,2 A mm MPa MPa % min. min. min. All forgings H112 t # 150 L 270 120 12 or T 260 110 10EN586-2:1994 BSI 12-1998 5 Table 4 Alloy EN AW-5754
43、 A1 Mg3 Table 5 Alloy EN AW-6082 A1 Si1MgMn Table 6 Alloy EN AW-7075 A1 Zn5,5MgCu Product Temper Section size Test direction Tensile strength Proof stress Elongation t min. R m R p0,2 A mm MPa MPa % min. min. min. All forgings H112 t # 150 L 180 80 15 Product Temper Section size Test direction Tensi
44、le strength Proof stress Elongation t R m R p0,2 A mm MPa MPa % min. min. min. All forgings T6 t # 100 L 310 260 6 or T 290 250 5 Product Temper Section size Test direction Tensile strength Proof stress Elongation t R m R p0,2 A mm MPa MPa % min. min. min. Die forgings T6 t # 50 L 510 430 7 or T 480
45、 410 4 50 t # 100 L 500 425 6 or T 470 400 4 T73 t # 50 L 455 385 6 or T 420 360 4 50 t # 100 L 445 375 6 or T 410 350 3 Hand forgings T652 t # 75 L 490 415 6 or LT 480 415 4 or ST 470 390 3 75 t # 150 L 470 385 6 or LT 460 375 4 or ST 445 370 3 T7352 t # 75 L 450 370 6 or LT 440 360 4 or ST 430 350
46、 3 75 t # 150 L 420 350 6 or LT 410 340 4 or ST 395 330 3EN586-2:1994 6 BSI 12-1998 Table 7 Inspection lot acceptance criteria for alloy EN AW-7075-T73 and T7352 forgings Table 8 Typical electrical conductivity and hardness values 7 Stress corrosion resistance Forgings produced in EN AW-7075 materia
47、l in the T73 and T7352 temper conditions shall be capable of exhibiting no evidence of stress corrosion cracking when subjected to ISO 9591:1992 accelerated stress corrosion cracking test. For the purposes of this standard, the following provisions apply: a minimum of three adjacent replicate test p
48、ieces shall be taken from each specimen and submitted for test; exposure shall be carried out by alternate immersion in a 3,5% by mass sodium chloride solution; test pieces shall be stressed in the short transverse direction with a stress level of 75% of the specified proof stress; no stress corrosi
49、on related rupture shall be observed after a minimum exposure time of20days. The method of stressing (bending, uniaxial loading, C-ring, etc.), the shape and dimensions of the test pieces and the frequency of the test are left to the discretion of the supplier, who shall maintain records of all lots so tested and make them available for examination at the suppliers facility for not le
