1、October 2015 Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、 77.150.20!%FmN“2357443www.din.deDIN EN 1754Magnesium and magnesium alloys Designation system for anodes, ingots and castings Material symbols and material numbers;English version EN 1754:2015,English translation of DIN EN 1754:2015-10Magnesium und Magnesiumlegierungen Bezeichnungssystem fr Anoden,
3、Blockmetalle und Gussstcke Werkstoffkurzzeichen und Werkstoffnummern;Englische Fassung EN 1754:2015,Englische bersetzung von DIN EN 1754:2015-10Magnsium et alliages de magnsium Systme de dsignation pour les anodes, lingots et pices moules Dsignation symbolique et numrique;Version anglaise EN 1754:20
4、15,Traduction anglaise de DIN EN 1754:2015-10SupersedesDIN EN 1754:199708www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.DDocument comprises 14 pages 09.15DIN EN 1754:2015-10 2 A comma is used as the decimal marker. National foreword This document (EN 175
5、4:2015) has been prepared by Technical Committee CEN/TC 190 “Foundry technology” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschuss Gieereiwesen (DIN Standards Committee Foundry Practice), Working Committee NA 036-00-04 AA Geometrische Pr
6、odukt-spezifikation und Technische Lieferbedingungen. Amendments This standard differs from DIN EN 1754:1997-08 as follows: a) the title of the standard has been modified; b) a similar numerical designation system as described in EN 10027-2 has been introduced; c) seven new alloy groups have been in
7、cluded: MgAl, MgAlRE, MgMn, MgZr, MgZnZr, MgREGdZr and MgZnThZr; d) the “Normative references” clause has been deleted and the “Bibliography” clause has been added; e) Clause 2 “Terms and definitions” has been included; f) Annexes A, B and C have been included. Previous editions DIN EN 1754 1997-08
8、EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1754 August 2015 ICS 77.150.20 Supersedes EN 1754:1997English Version Magnesium and magnesium alloys - Designation system for anodes, ingots and castings - Material symbols and material numbers Magnsium et alliages de magnsium - Systme de dsignati
9、on pour les anodes, lingots et pices moules - Dsignation symbolique et numrique Magnesium und Magnesiumlegierungen - Bezeichnungssystem fr Anoden, Blockmetalle und Gussstcke - Werkstoffkurzzeichen und WerkstoffnummernThis European Standard was approved by CEN on 27 June 2015. CEN members are bound t
10、o 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 application to the CEN-C
11、ENELEC 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 CEN-CENELEC Management Centre has
12、the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxe
13、mbourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Bruss
14、els 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1754:2015 EEN 1754:2015 (E) 2 Contents Page European foreword .3 Introduction .4 1 Scope 5 2 Terms and definitions .5 3 Designation by numbers .5 3.1 General 5 3.2 Structure
15、of the designation .5 4 Designation by symbols .6 4.1 General 6 4.2 Structure of the designation .7 Annex A (normative) Overall structure for designation by numbers 9 Annex B (normative) Overall structure for designation by symbols 10 Annex C (informative) Significant technical changes between this
16、European Standard and the previous edition 11 Bibliography . 12 DIN EN 1754:2015-10 EN 1754:2015(E)3 European foreword This document (EN 1754:2015) has been prepared by Technical Committee CEN/TC 190 “Foundry technology”, the secretariat of which is held by DIN. This European Standard shall be given
17、 the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2016 and conflicting national standards shall be withdrawn at the latest by February 2016. Attention is drawn to the possibility that some of the elements of this document may
18、be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1754:1997. Annex C provides details of significant technical changes between this European Standard and the previous edition. Within its progra
19、mme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 1 “Technical conditions of delivery and cast material designation” to revise EN 1754:1997, Magnesium and magnesium alloys - Magnesium and magnesium alloy anodes, ingots and castings - Designation system. According to the CEN-CENELEC
20、 Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icela
21、nd, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 1754:2015-10 EN 1754:2015 (E) 4 Introduction Magnesium and magnesium alloy anodes, ingots and castings can b
22、e designated either by numbers or by symbols for all grades. In this revised standard, a designation system by number, similar to that described in EN 10027-2 1, is specified. DINEN 1754:2015-10EN 1754:2015 (E) 5 1 Scope This European Standard specifies a material designation system for magnesium an
23、d magnesium alloys either by numbers or by symbols for castings including anodes and ingots intended for remelting. The designation system by numbers is only applicable to standardized magnesium and magnesium alloys (see 2.1). The designation system by symbols is applicable to a) standardized magnes
24、ium and magnesium alloys (see 2.1); b) non-standardized magnesium and magnesium alloys (see 2.2). NOTE 1 The standardized designation by symbols does not necessarily imply that the material is standardized. NOTE 2 Magnesium and magnesium alloys for aerospace applications referred to in European Stan
25、dards prepared by AECMA (fr: Association Europenne des Constructeurs de Matriel Arospatial) have different designations. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 standardized magnesium and magnesium alloy magnesium and magnesium alloy
26、specified in a European Standard 2.2 non-standardized magnesium and magnesium alloy magnesium and magnesium alloy not specified in a European Standard 3 Designation by numbers 3.1 General There shall be only one designation by number for each magnesium grade or each magnesium alloy. The designation
27、system by numbers is based on the principles and the structure as set out in EN 10027-2 1. 3.2 Structure of the designation 3.2.1 Overall structure The designation shall comprise six characters. The positions shall be in accordance with Table 1: Table 1 Number structure Position 1 2 3 4 5 6 Characte
28、r n . n n n n n: Arabic number The whole structure of the designation by numbers is shown in Table A.1. DINEN 1754:2015-10EN 1754:2015 (E) 6 3.2.2 Positions 1, 2 and 3 Position 1 is the main group number, which is “3” for non-ferrous light metals, followed by a “dot” in position 2. Position 3 is the
29、 material group number, which is “5” for magnesium. 3.2.3 Position 4 To specify the product form, the appropriate number given in Table 2 shall be used. Table 2 Product form Product form Number Anode 1 Ingot 2 Casting 3 3.2.4 Position 5 To specify the alloy group the appropriate number given in Tabl
30、e 3 shall be used. Table 3 Alloy group Alloy group Number Mg 0 MgAl, MgAlZn 1 MgAlMn, MgAlSi, MgAlRE a2 MgMn, MgZnCu 3 MgZr, MgZnZr, MgZnREZr a4 MgREAgZr a, MgREGdZr a5 MgYREZr a6 MgZnThZr 7 Vacant 8 Vacant 9 aRE: Rare earth elements. 3.2.5 Position 6 A 1-digit character from “0” to “9” representing
31、 an individual material shall be used. These numbers will be allocated by CEN/TC 190. 4 Designation by symbols 4.1 General There shall be only one designation by symbols for each magnesium grade or each magnesium alloy. DIN EN 1754:2015-10 EN 1754:2015 (E) 7 4.2 Structure of the designation 4.2.1 Ov
32、erall structure The designation by symbols is based on chemical symbols, usually followed by numbers indicating the minimum or nominal content of each considered element. There shall be no spaces between any of the used positions. Position 1: Prefix “EN-” (see 4.2.2); Position 2: Symbol “M” for magn
33、esium; Position 3: Symbol for “product form” (see 4.2.3); Position 4: Symbol “Mg”; A coded designation for classification by chemical composition (see 4.2.4). The whole structure of the designation system by symbols is shown in Table B.1. 4.2.2 Position 1 The prefix “EN-“ shall only be used for stan
34、dardized materials. NOTE If the European material standard (e.g. EN 1753 2) is presented in association with the material symbol (e.g. EN-MCMgAl2Mn), then the prefix “EN” of the symbol designation can be omitted (e.g. EN 1753-MCMgAl2Mn). 4.2.3 Position 3 To specify the product form, the appropriate
35、symbol given in Table 4 shall be used. Table 4 Product form Product form Symbol Anode A Ingot B Casting C 4.2.4 Coded designation 4.2.4.1 Unalloyed magnesium The coded designation for unalloyed magnesium consists of the chemical symbol “Mg” for magnesium (position 4) followed by its minimum mass fra
36、ction in percent expressed to one or two decimal places, as applicable. EXAMPLE EN-MBMg99,75 DIN EN 1754:2015-10 EN 1754:2015 (E) 8 4.2.4.2 Magnesium alloys Magnesium alloys shall be code designated by Mg (position 4) followed by the chemical symbols of the main element or elements. These symbols ar
37、e usually followed by figures which express the mass fraction of the element concerned in percent. When several alloying elements are required in the designation, they shall be arranged in decreasing order of mass fraction in percent. The number of alloying elements in the designation shall not be g
38、reater than 4. EXAMPLE 1 EN-MCMgAl8Zn1 EXAMPLE 2 EN-MBMgAl5Mn DIN EN 1754:2015-10 EN 1754:2015 (E) 9 Annex A (normative) Overall structure for designation by numbers This annex shows the overall structure of the material numbers designation in accordance with Clause 3. All of the positions are manda
39、tory. Table A.1 Overall structure for the designation by numbers Position 1 and 2 Position 3 Position 4 Position 5 Position 6 Main group Material group Product form Alloy group Individual material name number name number name number symbol number numbering number Non-ferrouslightmetals3. Magnesium5
40、Anode Ingot Casting 1 2 3 Mg 0 numbersto be allocated byCEN/TC1900 to 9 MgAl, MgAlZn 1 MgAlMn, MgAlSi, MgAlRE a2 MgMn, MgZnCu 3 MgZr, MgZnZr, MgZnREZr a4 MgREAgZr a, MgREGdZr a5 MgYREZr a6 MgZnThZr 7 Vacant 8 Vacant 9 aRE: Rare earth elements. DIN EN 1754:2015-10 EN 1754:2015 (E) 10 Annex B (normati
41、ve) Overall structure for designation by symbols This annex shows the overall structure of the material symbols designation according to Clause 4. Table B.1 Overall structure for the designation by symbols Position 1 mandatory except for 4.2.2 Position 2 mandatory Position 3 mandatory Position 4 man
42、datory Position 5 etc. Prefix Type of material Product form Main element Chemical composition name symbol designation symbol name symbol material symbol/ number EN- Magnesium M Anode Ingot Casting A B C Magnesium Mg Unalloyed magnesium: Minimum mass fraction in percent expressed to one or two decima
43、l places. e.g. 99,75 Mg-alloys: Symbols of the main element or elements, maximum 4, usually followed by figures which express the mass fraction of the element concerned in percent. e.g. MgAl8Zn1 MgRE3Zn2Zr DIN EN 1754:2015-10 EN 1754:2015 (E) 11 Annex C (informative) Significant technical changes be
44、tween this European Standard and the previous edition Table C.1 Significant technical changes between this European Standard and the previous edition Clause/Paragraph/ Table/Figure Change Title of the standard Changed to: “Magnesium and magnesium alloys Designation system for anodes, ingots and cast
45、ings Material symbols and material numbers” Clause 3 New system, based on the principles and the structure set out in EN 10027-2, for the designation of magnesium and magnesium alloys by numbers introduced. Table 3 and Table A.1 Seven new alloy groups added: MgAl, MgAlRE, MgMn, MgZr, MgZnZr, MgREGdZ
46、r and MgZnThZr. NOTE The technical changes referred to include the significant technical changes from the revised EN but are not an exhaustive list of all modifications from the previous version. DIN EN 1754:2015-10 EN 1754:2015 (E) 12 Bibliography 1 EN 10027-2, Designation systems for steels - Part 2: Numerical system 2 EN 1753, Magnesium and magnesium alloys - Magnesium alloy ingots and castings DIN EN 1754:2015-10
