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1、BRITISH STANDARD BS EN 1780-1:2002 Aluminium and aluminium alloys Designation of alloyed aluminium ingots for remelting, master alloys and castings Part 1: Numerical designation system The European Standard EN 1780-1:2002 has the status of a British Standard ICS 77.150.10 ? Licensed Copy: sheffieldu
2、n sheffieldun, na, Mon Oct 30 05:13:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1780-1:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committe
3、e on 30 October 2002 BSI 30 October 2002 ISBN 0 580 40656 3 National foreword This British Standard is the official English language version of EN 1780-1:2002. It supersedes BS EN 1780-1:1997 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee NFE/35, Lig
4、ht metals and their alloys, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in t
5、he 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 publication does not purport to include all the necessary provisions of a contract. Users are responsible
6、 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 international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK
7、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 page, pages 2 to 7 and a back cover. The BSI copyright date displayed in this document indicates when
8、 the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:13:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1780-1 October 2002 ICS 77.150.10Supersedes EN 1780
9、-1:2002 English version Aluminium and aluminium alloys - Designation of alloyed aluminium ingots for remelting, master alloys and castings - Part 1: Numerical designation system Aluminium et alliages daluminium - Systme de dsignation applicable aux lingots pour refusion en aluminium alli, aux alliag
10、es-mres et aux produits mouls - Partie 1: Systme de dsignation numrique Aluminium und Aluminiumlegierungen - Bezeichnung von legiertem Aluminium in Masseln, Vorlegierungen und Gussstcken - Teil 1: Numerisches Bezeichnungssystem This European Standard was approved by CEN on 2 September 2002. CEN memb
11、ers 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 and bibliographical references concerning such national standards may be obtained on applicati
12、on to the Management Centre 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 responsibility of a CEN member into its own language and notified to the Management Centre has the same
13、status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE
14、FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1780-1:2002 E Licensed Copy: sheffieldun s
15、heffieldun, na, Mon Oct 30 05:13:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1780-1:2002 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Basis of codification4 4Five-figure designation system4 4.1Aluminium alloys ingot and castings 4 4.2Master alloys 6 Bibliography7 Licensed Cop
16、y: sheffieldun sheffieldun, na, Mon Oct 30 05:13:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1780-1:2002 (E) 3 Foreword This document (EN 1780-1:2002) has been prepared by Technical Committee CEN /TC 132, “Aluminium and aluminium alloys“, the secretariat of which is held by AFNOR. This European
17、 Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2003, and conflicting national standards shall be withdrawn at the latest by April 2003. Within its programme of work, Technical Committee CEN/TC 132 entru
18、sted CEN/TC 132/WG 1 “Liquid metal, unalloyed and alloyed ingots“ to prepare the following standard: EN 1780-1, Aluminium and aluminium alloys Designation of alloyed aluminium ingots for remelting, master alloys and castings Part 1 : Numerical designation system. This document supersedes EN 1780-1:1
19、996 “Aluminium and aluminium alloys Designation of unalloyed and alloyed aluminium ingots for remelting, master alloys and castings Part 1 : Numerical designation system“. In this revised edition, unalloyed aluminium ingots have been removed from the scope and provisions for unalloyed aluminium ingo
20、ts have been deleted. The provisions about the writing rules of unalloyed aluminium have been transferred into the revised version of EN 576. This European Standard EN 1780, “Aluminium and aluminium alloys Designation of alloyed aluminium ingots for remelting, master alloys and castings”, comprises
21、of the following parts: Part 1 : Numerical designation system Part 2 : Chemical symbol based designation system Part 3 : Writing rules for chemical composition According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement th
22、is European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:13:37 GMT+00:00 2
23、006, Uncontrolled Copy, (c) BSI EN 1780-1:2002 (E) 4 1 Scope This European Standard specifies a five-figure numerical designation system for aluminium alloys and master alloys as specified in the relevant European Standards. It applies to ingots for remelting and to castings for all applications inc
24、luding aerospace. A designation system for unalloyed aluminium is specified in EN 576. An alternative chemical symbol based designation system is specified in EN 1780-2. The writing rules for chemical composition are specified in EN 1780-3. 2 Normative references This European Standard incorporates
25、by dated or undated reference, provisions from other publications. 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 Sta
26、ndard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 2032-1, Aerospace series Metallic materials Part 1 : Conventional designation. 3 Basis of codification The designation shall be con
27、stituted successively by : a) the prefix EN followed by a blank space ; b) the letter A representing aluminium ; c) a letter representing the form of the product : the letter B representing alloyed aluminium ingots for remelting ; or C representing castings ; or M representing master alloys ; d) a h
28、yphen ; e) five figures representing the alloy composition limits. EXAMPLE 1 EN AB-44000 EXAMPLE 2EN AM-91400 The prefix letters of alloys for aerospace applications are different from those above and are specified in EN 2032-1. 4 Five-figure designation system 4.1 Aluminium alloys ingot and casting
29、s For a given alloy, ingots and castings shall have the same numerical designation. The first of the five figures in the designation shall indicate the major alloying elements as follows : copper: 2XXXX ; Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:13:37 GMT+00:00 2006, Uncontrolled Co
30、py, (c) BSI EN 1780-1:2002 (E) 5 silicon : 4XXXX ; magnesium : 5XXXX ; zinc : 7XXXX. The second of the five figures in the designation shall indicate the alloy group as follows : 2 1 XXX: Al Cu ; 4 1 XXX : Al SiMgTi ; 4 2 XXX: Al Si7Mg ; 4 3 XXX : Al Si10Mg ; 4 4 XXX : Al Si ; 4 5 XXX : Al Si5Cu ; 4
31、 6 XXX : Al Si9Cu ; 4 7 XXX : Al Si(Cu) ; 4 8 XXX: Al SiCuNiMg ; 5 1 XXX : Al Mg ; 7 1 XXX : Al ZnMg. The third figure is arbitrary. The fourth figure is generally 0. The fifth figure shall be 0, except for aerospace applications. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:13:37 GMT+0
32、0:00 2006, Uncontrolled Copy, (c) BSI EN 1780-1:2002 (E) 6 4.2 Master alloys The first of the five figures in the designation system shall be the number 9. The second and third figures shall represent the atomic number of the main element. EXAMPLE 105 for boron ; EXAMPLE 214 for silicon ; EXAMPLE 32
33、9 for copper. The last two figures shall be chronological numbers, but for the fifth figure : an even figure is reserved for a master alloy with low level of impurities ; or an odd figure is reserved for a master alloy with high level of impurities. Licensed Copy: sheffieldun sheffieldun, na, Mon Oc
34、t 30 05:13:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1780-1:2002 (E) 7 Bibliography 1 EN 576, Aluminium and aluminium alloys Unalloyed aluminium ingots for remelting Specifications. 2 EN 1780-2, Aluminium and aluminium alloys Designation of alloyed aluminium ingots for remelting, master alloy
35、s and castings Part 2 : Chemical symbol based designation system. 3 EN 1780-3, Aluminium and aluminium alloys Designation of alloyed aluminium ingots for remelting, master alloys and castings Part 3 : Writing rules for chemical composition. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 05:1
36、3:37 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1780-1:2002 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 international level
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