1、CEN EN*.573-2 94 3404589 0087365 642 BRITISH STANDARD Aluminium and aluminium alloys - BS EN Chemical composition and form of wrought products Part 2. Chemical symbol based designation system The European Standard EN 573-2 : 1994 has the status of a British Standard UDC 669 71 : 669 715.018 26 62-77
2、7 573-2 : 1995 CEN ENx573-2 94 = 3404589 0087266 589 Sector Board (E/-), was Amd. No. Date published under the authority of the Standards Board and comes into effect on 15 January 1995 BS EN 573-2 : 1995 Qxt affected Cooperating organizations The European Committee for Standardization (CEN), under w
3、hose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Belgium Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom Oesterreichische
4、s Normungsinstitut Institut belge de normalisation Dansk Standard Suomen Standardisoimisliito, r. y. Association francaise de normalisation Deutsches Institut fr Normung e.V. Hellenic Organization for Standardization Rchnological Institute of Iceland National Standards Authority of Ireland Ente Nazi
5、onale Italiano di Unificazione Inspection du Travail et des Mines Nederlands Normalisatie-instituut Norges Standardiseringsforbund Instituto Portugus da Qualidade Asociacin Espaola de Normalizacin y Certificacin Standardiseringskommissionen i Sverige Association suisse de normalisation British Stand
6、ards Institution O BSI 1995 The following BSI references relate to the work on this standard: Committee reference NFE/35/5 Draft for comment 91/47492 DC ISBN O 680 22763 4 CEN EN*573-2 94 W 3404589 0087Lb7 U15 BS EN 573-2 : 1995 Contents Page Cooperating organizations Inside front cover National for
7、eword i Foreword 2 Text of EN 573-2 3 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back cover National foreword This Part of this British Standard has been prepared by Subcommittee NFE/35/5, Wrought aluminium and alu
8、minium alloys and is the English language version of EN 573-2 : 1994 Aluminium and aluminium alloys - Chemical composition and form of wrought products - part 2: Chica1 symbol based designation system, published by the European Committee for Standardization (CEN). Compliance with a British Standard
9、does not of itself confer immunity from legal obligations. i CEN EN*573-2 94 3404589 0087168 352 W EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 573-2 August 1994 UDC 669.71 : 669.715.018.26 : 62-777 Descriptors: Aluminium, aluminium alloys, rolled products, aluminium products, chemical compo
10、sition, shape, designation, chemical formulae, codification English version Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 2: Chemical symbol based designation system Aluminium et alliages d?aluminium - Composition chimique et form des produits corroys - Pa
11、rtie 2: Systme de dsignation fond sur les symboles chimiques Aluminium und Aluminiumlegierungen - Chemische Zusammensetzung und Form von Halbzeug - %il 2: Bezeichnungssytem mit chemischen Symbolen This European Standard was approved by CEN on 1994-08-17. CEN members are bound to comply with the CENK
12、ENELEC 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 application to the Central Secretariat or to an
13、y 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 Central Secretariat has the same status as the official versions. C
14、EN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Eu
15、ropisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1994 Copyright reserved to CEN members Ref. No. EN 573-2 : 1994 E CEN EN*573-2 94 m 3404589 0087169 298 W Page 2 EN 573-2 : 1994 Foreword This European Standard has been drawn up by CEN/TC 132, Aluminium and alum
16、inium ailoys, whose Secretariat is held by the Association Franaise de Normalisation (AFNOR). Within its programme of work, Technical Committee CEN/TC 132 has been entrusted to prepare the following standard: EN 573-2 Aluminium and aluminium alloys - Chemical composition and fomz of wrought products
17、 - firt 2: Chemical qmbol based designation system This standard is part of a set of four standards. The other standards deal with: EN 573-1 Aluminium and aluminium alloys - Chemical composition and fm of wrought products - Rtrt 1: Numerical designation system EN 573-3 Aluminium and aluminium alloys
18、 - Chemical composition and fm of wrought products - Rtrt 3: Chical composition EN 573-4 Aluminium and aluminium alloys - Chical composition and fm of wrought products - firt 4: RWWLS Of products This European Standard shall be given the status of a national standard, either by publication of an ide
19、ntical text or by endomement, at the latest by February 1995, and conflicting national standards shall be withdrawn at the latest by February 1995. In accordance with the CENXENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark
20、, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Foreword 1 Scope 2 Normative references 3 Basis of coding 4 Rules for the coded designation of wrought unalloyed aluminium 5 Rules for the c
21、oded designation of wrought aluminium alloys 6 Special use of grades of wrought aluminium and aluminium alloys 7 Alloys produced from high purity aluminium Annex A (normative) International chemical symbols Page 2 3 3 3 3 4 4 4 CEN EN*5?3-2 94 9 3404.589 0087170 TOT 1 Scope This part of EN 573 speci
22、fies a code of designation applicable to aluminium and aluminium alloys as specified in the relevant European Standards. It is a descriptive code based primarily on chemical symbols. The designations in accordance with this Part of EN 573 are intended primarily as a supplement to the four figure des
23、ignation described in EN 573-1. This standard applies to wrought products and to ingots intended to be wrought. It is not applicable to: - ingots for remelting; - castings; - composite products, i.e. those containing, in addition to aluminium and its alloys, other metallic or non-metallic materials;
24、 - products of powder metallurgy. 2 Normative references This European Standard incorporates by dated or undated references, 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,
25、 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. EN 573-1 Aluminium and aluminium alloys - Chemical composition
26、and fi of wrought products - Part 1: Nurnerical designation system EN 573-3 Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 3: Chemical composition IS0 209-1 : 1989 Wrought aluminium and aluminium alloys - Chemical composition and forms of products - Fbrt 1:
27、 Chemical composition 3 Basis of coding 3.1 The designations of aluminium and aluminium alloys are based on the chemical symbols, usually followed by numbers indicating the purity of aluminium or nominal content of the considered element. 3.2 The chemical symbols used are those of the international
28、nomenclature (see annex A). 3.3 The numbers or figures indicating the purity of aluminium, or the nominal content of the considered element, are based on the chemical composition limits given in EN 573-3. fige 3 EN 573-2 : 1994 3.4 Normally all designations complying with this coding shall be put wi
29、thin square brackets, following the four figure designation. If, exceptionally, only the chemical symbol based designation is used, then it shall have the prefix EN, followed by a blank, then the letter A representing aluminium and the letter W identifying wrought products (and ingots to be wrought)
30、. The letter W shall be separated from the following designation by a hyphen. Examples: Normal use: EN AW-5052 or Exceptional use: EN AW-A1 Mg2,5 EN AW-5052 Al Mg2,5 3.5 The designations currently in use and the corresponding chemical composition limits are specified in EN 573-3. 3.6 Assignments or
31、revisions of designations shall be approved by lchnical Committee CEN/TC132. 3.7 In order to ensure consistency with other national and international standards, and in particular with IS0 209-1 : 1989 whose code of designation is based on the same principles: - where the composition of an alloy is s
32、trictly identical to the composition of an alloy registered by ISO, the IS0 designation shall be used; - where the composition of an alloy does not correspond to the composition of any alloy in IS0 209-1 : 1989, CEN/TC 132 will create a new designation for this alloy, and keep ISO/TC 79 informed. 4
33、Rules for the coded designation of wrought unalloyed aluminium Designations for unalloyed aluminium for working shall consist of the international chemical symbol of the metal (Al) followed by the percentage purity expressed to one or more decimal places, as necessary. Examples: EN AW-1199 Al 99,991
34、 EN AW-1070A Al 99,7 The symbol Al is separated by a blank space from the percentage purity. If an element is added to unalloyed aluminium at a low content, the symbol corresponding to this element shall be added without a space after the percentage purity, Example: EN AW-1100 Al 99,oCul CEN EN*573-
35、2 74 = 3404589 0087373 746 D page 4 EN 673-2 : 1994 5 Rules for the coded designation of wrought aluminium alloys 5.1 Basic principles 5.1.1 An alloy is designated by Al, followed by the symbols of the main alloying element or elements. These symbols are usually followed by numbers which express the
36、 mass percent contents of the considered elements, in compliance with the rules shown in 5.2. The symbol Al is separated by a blank space from the remainder of the designation. 5.1.2 Where several alloying elements are deemed to be required in the designation, they are arranged in order of decreasin
37、g nominal contents. Examples: EN AW-6061 Al MglSiCu EN AW-2014 Al Cu4SiMgI 5.1.3 If these contents are equal, the alloying elements are arranged in alphabetical order of the symbols. Example: EN AW-2011 Al CuGBiPb 5.1.4 The chemical symbols for alloying elements shall be restricted to four elements.
38、 Example: EN AW-7050 Al ZnGCuMgZr 6.2 Rules for distinguishing between two alloys of similar compositions 5.2.1 Care shall be taken to use the simplest possible designation. In the case of alloys with similar compositions, additional designations shall be used for distinguishing between alloys. They
39、 are given, in decreasing priority, in 5.2.2 to 5.2.4. 5.2.2 The primary alloying element shall be distinguished by the nominal content (middle of the range) rounded to the nearest integer or, if necessary, to the nearest 5/10, or for contents less than 1 %, to the nearest 1/10. Examples: EN AW-5251
40、 Al MgZ EN AW-5052 Al Mg2,5 EN AW-6063 Al MgO,7Si 5.2.3 The secondary alloying elements are distinguished by the nominal content (middle of the range) rounded to the nearest integer of, if necessary, to the nearest 5/10, or, for contents less than 1 %, to the nearest 1/10. 5.2.4 If the above provisi
41、ons are not sufficient for differentiating between several alloys, a suffix shall be used : (A), (B), (C), etc, according to the date of submission to CEN; the first alloy submitted has no suffix. This suffix shall be placed in parentheses to avoid confusion with the chemical symbols. Examples: EN A
42、W-2014 Al Cu4SiMgI EN AW-2014A Al Cu4SiMg(A) 6 Special use of grades of wrought aluminium and aluminium alloys This practice shall be restricted as far as possible. It shall be limited to the case where the considered application requires specific chemical composition limits for at least one element
43、. A letter introducing the chemical composition can then be used. The letter E has been allocated to electrical applications. Examples: EN AW-1350 EA1 99,5 electrical applications EN AW-6101 EA1 MgSi electrical applications EN AW-1050A Al 99,5 general applications 7 Alloys produced from high purity
44、aluminium In certain alloys, the base metal is of high purity, for example Al 99,85 %. It is then necessary to give the specified high content in full. This content is given to two decimal places; the alloying elements are then given as set out above. Example: EN AW-5305 Al 99,85Mg I Examples: EN AW
45、-3103 Al Mnl EN AW-3005 Al MnlMg0,5 EN AW-3004 Al MnlMgl CEN ENo.573-2 94 3g04589 0087372 882 D Page 5 EN 573-2 : 1994 Annex A (normative) International chemical symbols The International chemical symbols are as follows: Aluminium Antimony Beryllium Bismuth Boron Cadmium Cerium Chromium Cobalt Coppe
46、r Gallium Iron Lead Lithium Al Sb Be Bi B Cd Ce Cr Co Cu Ga Fe Pb Li Magnesium Manganese Molybdenum Nickel Niobium Rare Earths Silicon Silver Strontium Tin Titanium Vanadium Zinc Zirconium vzg Mn 11 o Ni 5% RE Si Ag Sr Sn Ti v Zn Zr 3404589 0086472 638 BS EN 573-2 : 1995 National annex NA (informati
47、ve) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by Technical Committee NFE/35, Light metals and their alloys, to Subcommittee NFE/35/5, Wrought aluminium and aluminium alloys upon which the following bodies were represented: Alum
48、inium Federation Aluminium Stockholders Association London Metal Exchange Magnesium Industry Council The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Association of British Welded Aluminium Tube Makers Association of Light Alloy Refiners L
49、imited Institution of Structural Engineers Metal Packaging Manufacturers Association National annex NB (informative) Committees responsible Publication referred to Corresponding British Standard BS EN 573 Aluminium and aluminium alloys - Chemical composition, and form. of wrought products Part 1 : 1995 Numerical designation system Part 3 : 1995 Chemical composition EN 573-1 : 1994 EN 573-3 : 1994 BS EN 573-2 : 1995 BSI 389 Chiswick High Road London W4 4AL 9501 - 5 - 0.8k - FP BSI - British Standards Institution BSI is the independent n
