BS EN 2032-001:2014 BSI Standards Publication Aerospace series — Metallic materials Part 001: Conventional designation BS EN 2032-001:2014 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 2032-001:2014 It supersedes BS EN 2032-1:2002 which is withdrawn The UK participation in its preparation was entrusted to Technical Committee ACE/61, Metallic materials for aerospace purposes A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2014 Published by BSI Standards Limited 2014 ISBN 978 580 81517 ICS 49.025.05; 49.025.15 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2014 Amendments issued since publication Date Text affected BS EN 2032-001:2014 EN 2032-001 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM July 2014 ICS 49.025.05; 49.025.15 Supersedes EN 2032-1:2001 English Version Aerospace series - Metallic materials - Part 001: Conventional designation Série aérospatiale - Matériaux métalliques - Partie 001 : Désignation conventionnelle Luft- und Raumfahrt - Metallische Werkstoffe - Teil 001: Konventionelle Bezeichnung This European Standard was approved by CEN on 21 March 2013 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 Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 2032-001:2014 E BS EN 2032-001:2014 EN 2032-001:2014 (E) Contents Page Scope Normative references Terms and definitions 4.1 4.2 4.3 4.4 4.5 Principle General ASD-STAN designation Method of production or use Basic chemical composition (base metal excluded) Mass content of an alloying element 5.1 5.2 5.3 5.4 5.5 5.6 5.7 Structural materials .8 Unalloyed metals Nickel base or cobalt base alloys Aluminium base materials Steels 10 Commercially pure titanium and titanium base alloys 10 Magnesium base alloys 11 Other metal base alloys 12 6.1 6.2 Joining materials 13 Filler metals for welding 13 Filler metals for brazing 13 7.1 7.2 Allocation and registration of the conventional designations 18 Allocation 18 Registration of the conventional designations 18 Annex A (informative) General 19 Annex B (informative) ASD-STAN designation: Nickel base or cobalt base alloy (Not applicable to new standard and revision) 20 Annex C (informative) ASD-STAN designation: Steels (Not applicable to new standards and revisions) 23 C.1 Unalloyed steels 23 C.2 Low alloy steels 24 C.3 High alloy ferritic and martensitic steels 25 C.4 High alloy austenitic and austenitic-ferritic steels 26 Annex D (informative) ASD-STAN designation: Commercially pure titanium and titanium base alloy (Not applicable to new standards and revisions) 28 D.1 Commercially pure titanium 28 D.2 Titanium base alloy 28 BS EN 2032-001:2014 EN 2032-001:2014 (E) Foreword This document (EN 2032-001:2014) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN) 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 ASD, prior to its presentation to CEN 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 January 2015, and conflicting national standards shall be withdrawn at the latest by January 2015 Attention is drawn to the possibility that some of the elements of this document may 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 2032-1:2001 According to the CEN-CENELEC 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, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 2032-001:2014 EN 2032-001:2014 (E) Introduction This standard is part of the series of EN metallic materials standards for aerospace applications The general organization of this series is described in EN 4258 BS EN 2032-001:2014 EN 2032-001:2014 (E) Scope This European Standard specifies the rules for establishing the conventional designation of unalloyed, commercially pure and alloyed metallic materials used for aerospace applications NOTE Information relating to former ASD-STAN designations for nickel base or cobalt base alloys, steel, commercially pure titanium and titanium base alloys, is contained in Annex (informative) Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 1780-1, Aluminium and aluminium alloys — Designation of alloyed aluminium ingots for remelting, master alloys and castings — Part 1: Numerical designation system EN 4258, Aerospace series — Metallic materials — General organization of standardization - Links between types of EN standards and their use EN 4500-001, Aerospace series — Metallic materials — Rules for drafting and presentation of material standards - Part 001: General rules EN 10020, Definition and classification of grades of steel EN 10027-1, Designation systems for steels — Part 1: Steel names EN 10027-2, Designation systems for steels — Part 2: Numerical system TR 3900, Aerospace series — Metallic materials — Relationship between AECMA designation systems 1) ISO 80000-9, Quantities and units — Part 9: Physical chemistry and molecular physics Terms and definitions For the purposes of this document, the following terms and definitions apply 3.1 structural material material used for the manufacture of a specific component of an aerospace system, structure or engine 3.2 alloying element see EN 4500-001 3.3 unalloyed metal metal that contains no alloying elements and with a total impurity content less than 0,5 % For the applications of this standard, a so-called “commercially pure” metal is not considered as unalloyed metal and its designation shall be chosen according to the same rules as those of the relevant metallic alloys 1) Published as ASD-STAN Technical Report at the date of publication of this standard http://www.asd-stan.org/ BS EN 2032-001:2014 EN 2032-001:2014 (E) 3.4 cast material material resulting from the bulk solidification of a previously homogeneous liquid metal 3.5 cast + wrought material material resulting from further solid state working of cast material 3.6 powder metallurgy material material divided into solid particles at least in the first step of its solid state processing 3.7 steel iron base material alloyed with carbon the content of which is generally lower than % 3.8 unalloyed steel see EN 10020 3.9 low alloy steel steel alloyed with one or several metallic elements, the mean value of the content of each being less than % and the content of at least one being higher than the carbon content 3.10 high alloy, ferritic or martensitic steel steel alloyed with one or several metallic elements, the mean value of the content of at least one of which is equal to or higher than % and the crystalline structure of which contains less than 40 % of austenite in its condition of use 3.11 high alloy, austenitic or austenitic-ferritic steel steel alloyed with one or several metallic elements, the mean value of the content of at least one of which is equal to or higher than % and the crystalline structure of which contains 40 % austenite or more in its condition of use 3.12 joining material material used for the metallurgical assembly of several parts of an aerospace system 3.13 filler metals for welding joining material solidus temperature of which is close to or the same as the solidus temperature of the materials to be joined 3.14 filler metals for brazing joining material solidus temperature of which is significantly lower than the solidus temperature of the materials to be joined BS EN 2032-001:2014 EN 2032-001:2014 (E) Principle 4.1 General The conventional designation defines by one series of characters (letters, figures, dashes) all metallic materials having the same basic chemical composition without taking into account: — any option concerning other elements than alloying elements, — the method of melting, — the heat treatment, — the form NOTE The method of melting may induce variations in the mass content of one or several alloying elements These variations are not considered significant and shall not be taken into consideration 4.2 ASD-STAN designation ASD-STAN designation is not applicable to new standard and revision for: — nickel base or cobalt base alloys (see 5.2, EN 10027-1 and EN 10027-2), — steels (see 5.4, EN 10027-1 and EN 10027-2), — commercially pure titanium and titanium base alloys (see 5.5) The ASD-STAN designation of each material comprises nine characters divided into three groups: A group of three characters consisting of: — the symbol of the base metal in accordance with ISO 80000-9, but written entirely in capital letters, — dash(es) for completion to three characters A group of five characters: — the first three characters indicate the alloying elements (one, two or three) considered significant (with the exception of all aluminium base materials) If the chemical composition is such that there is only one or two alloying elements, the remaining character(s) is (are) a zero The use of this group of three characters is defined in each of the relevant following clauses In addition, one character indicates the method of production for structural materials or the use for joining materials (see 4.3) — the last two of this group of five characters (or the last character in the case of cast aluminium base alloys, see 5.3.2) form a serial number starting at 01 (or in the case of cast aluminium base alloys, see 5.3.2) This serial number shall be changed every time the first three and the last five characters already allocated not fit the new basic chemical composition to be designated The conventional designation is unique for one basic chemical composition, except for certain filler metals for brazing (see 6.2.2.2 and 6.2.2.3) BS EN 2032-001:2014 EN 2032-001:2014 (E) 4.3 Method of production or use A capital letter from the following series: Structural material –––––––- C for cast material, P for cast + wrought material, R for powder metallurgy material Joining material ––––––––– W for welding material, B for brazing material 4.4 Basic chemical composition (base metal excluded) A group of five digits: 4.4.1 In the case of unalloyed materials, the first three digits indicate information as in 5.1 4.4.2 In the case of metallic alloys, with the exception of all aluminium base materials (see 5.3), the first three digits indicate the alloying elements (one, two or three) considered significant (see 5.1, 5.2, Annex B, Annex C, Annex D and 5.6 to 6.2) If the chemical composition is such that there is only one or two alloying elements, the remaining digit(s) is (are) a zero The use of this group of three digits is defined in each of the relevant following clauses 4.4.3 The last two of this group of five digits form a serial number starting at 01 This serial number shall be changed every time the first three and the last five digits already allocated not fit the new basic chemical composition to be designated NOTE In consequence of 4.1, 4.2 and 4.3, except for certain brazing materials (see 6.2.2.1 and 6.2.2.2) the first three and the last five digits correspond to one and only one basic chemical composition, whatever the letter used as the fourth digit 4.5 Mass content of an alloying element It shall be taken as the arithmetical mean of the limits of its range If two alloying elements have the same mass content, they shall be written according to the alphabetical order of their international symbol Structural materials 5.1 Unalloyed metals With the exception of all aluminium base materials (see 5.3), the group of five digits of the designation comprises from left to right: — a single capital letter U symbolic of this category, — a number indicating the percentage of base metal after the decimal point, completed with zero if necessary, — last two digits as serial numbers (This serial number shall be changed every time the first three and the last five characters already allocated not fit the new basic chemical composition to be designated) BS EN 2032-001:2014 EN 2032-001:2014 (E) EXAMPLE Gold base filler metal for brazing Allocation and registration of the conventional designations 7.1 Allocation The conventional designation shall be allocated by ASD-STAN: Metallic Materials Domain 7.2 Registration of the conventional designations The conventional designation shall be registered by ASD-STAN: Metallic Materials Domain A register shall be kept by ASD-STAN: Metallic Materials Domain, indicating the chemical compositions as specified in the corresponding material standards versus each conventional designation 18 BS EN 2032-001:2014 EN 2032-001:2014 (E) Annex A (informative) General ASD-STAN designation is not applicable to new standard and revision for: — nickel base or cobalt base alloys (see 5.2, EN 10027-1 and EN 10027-2), steels (see 5.4, EN 10027-1 and EN 10027-2), — commercially pure titanium and titanium base alloys (see 5.5) NOTE The relationship between former ASD-STAN designations and the new designations according to this standard is given in TR 3900 19 BS EN 2032-001:2014 EN 2032-001:2014 (E) Annex B (informative) ASD-STAN designation: Nickel base or cobalt base alloy (Not applicable to new standard and revision) The group of five digits of the designation comprises from left to right: a) an indication of the chromium mass content by one capital letter, — D for alloys which have a chromium mass content < 15 %, — H for alloys which have a chromium mass content ≥ 15 % b) one or two digits indicating in decreasing order of their mass content the one or two alloying elements of highest mass content other than chromium, in accordance with Table B.1, NOTE c) When only one reference is needed, the following digit is a zero last two digits as serial numbers (This serial number shall be changed every time the first three and the last five characters already allocated not fit the new basic chemical composition to be designated) Table B.1 — List of alloying element references for nickel and cobalt base alloys 20 Reference Element Ni or Co Fe Mo W Ta Nb Al Ti Miscellaneous BS EN 2032-001:2014 EN 2032-001:2014 (E) EXAMPLE Cast nickel base alloy EXAMPLE Cast + wrought cobalt base alloy 21 BS EN 2032-001:2014 EN 2032-001:2014 (E) EXAMPLE 22 Powder metallurgy nickel base alloy BS EN 2032-001:2014 EN 2032-001:2014 (E) Annex C (informative) ASD-STAN designation: Steels (Not applicable to new standards and revisions) C.1 Unalloyed steels The group of five characters in the designation comprises from left to right: — a capital letter X symbolic of this category, — one character indicating the carbon mass content according to Table C.1, — a zero if necessary, — last two characters as a serial number (this serial number shall be changed every time the first three and the last five characters already allocated not fit the new basic chemical composition to be designated) Table C.1 — List of carbon mass content references for unalloyed steels Reference Carbon mass content % C ≤ 0,10 0,10 < C ≤ 0,20 0,20 < C ≤ 0,30 0,30 < C ≤ 0,40 0,40 < C ≤ 0,60 0,60 < C ≤ 0,80 0,80 < C ≤ 1,00 C > 1,00 23 BS EN 2032-001:2014 EN 2032-001:2014 (E) EXAMPLE Unalloyed cast + wrought steel C.2 Low alloy steels The group of five characters in the designation comprises from left to right: — a capital letter L symbolic of this category, — two characters indicating in decreasing order of their mass content the two alloying elements of highest mass content, in accordance with Table C.2, — last two characters as a serial number (This serial number shall be changed every time the first three and the last five characters already allocated not fit the new basic chemical composition to be designated) Table C.2 — List of alloying element references for low alloy steels 24 Reference Element Cr Ni Nb V Mo Ti Si Mn Miscellaneous BS EN 2032-001:2014 EN 2032-001:2014 (E) EXAMPLE Cast low alloy steel EXAMPLE Cast + wrought low alloy steel C.3 High alloy ferritic and martensitic steels The group of five characters in the designation comprises from left to right: — a capital letter M symbolic of this category, — one character indicating chromium and nickel mass content, in accordance with Table C.3, — one character indicating the third alloying element of the highest mass content of the other alloying elements, in accordance with Table C.3, — last two characters as a serial number (this serial number shall be changed every time the first three and the last five characters already allocated not fit the new basic chemical composition to be designated) 25 BS EN 2032-001:2014 EN 2032-001:2014 (E) Table C.3 — List of alloying element references for high alloy ferritic and martensitic steels EXAMPLE Reference Element Cr < 15 % and Ni < 12 % Cr < 15 % and Ni ≥ 12 % Cr ≥ 15 % and Ni < 12 % Cr ≥ 15 % and Ni ≥ 12 % Mo W Co Cu Miscellaneous Cast + wrought ferritic steel C.4 High alloy austenitic and austenitic-ferritic steels The group of five characters in the designation comprises from left to right: — a capital letter A symbolic of this category, — one character indicating chromium and nickel mass content, in accordance with Table C.4, — one character indicating the third alloying element of the highest mass content of the other alloying elements, in accordance with Table C.4, 26 BS EN 2032-001:2014 EN 2032-001:2014 (E) — last two characters as a serial number (this serial number shall be changed every time the first three and the last five characters already allocated not fit the new basic chemical composition to be designated) Table C.4 — List of alloying element references for high alloy austenitic and austeno-ferritic steels EXAMPLE Reference Element Cr < 18 % and Ni < 11 % Cr < 18 % and Ni ≥ 11 % Cr ≥ 18 % and Ni < 11 % Cr ≥ 18 % and Ni ≥ 11 % Mo Ti Nb Mn or Cu Miscellaneous Cast + wrought austenitic-ferritic steel 27 BS EN 2032-001:2014 EN 2032-001:2014 (E) Annex D (informative) ASD-STAN designation: Commercially pure titanium and titanium base alloy (Not applicable to new standards and revisions) D.1 Commercially pure titanium The group of five characters in the designation comprises from left to right: — two characters indicating the presence of both iron and oxygen elements, using reference of Table D.1, — a zero if necessary, — last two characters as a serial number (This serial number shall be changed every time the first three and the last five characters already allocated not fit the new basic chemical composition to be designated) EXAMPLE Cast + wrought commercially pure titanium D.2 Titanium base alloy The group of five characters in the designation comprises from left to right: one or two characters indicating in decreasing order of their mass content the one or two alloying elements of highest mass content, in accordance with Table D.1 NOTE When only one reference is needed, the following character is a zero — a zero if necessary (see 4.4), — last two characters as a serial number (This serial number shall be changed every time the first three and the last five characters already allocated not fit the new basic chemical composition to be designated) 28 BS EN 2032-001:2014 EN 2032-001:2014 (E) Table D.1 — List of alloying element references for titanium base alloys Reference Element Cu Sn Mo V Zr Al Ni Cr Miscellaneous EXAMPLE Powder metallurgy titanium base alloy EXAMPLE Cast titanium base alloy 29 BS EN 2032-001:2014 EN 2032-001:2014 (E) EXAMPLE 30 Cast + wrought titanium base alloy This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British 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