1、July 2015 Translation by DIN-Sprachendienst.English price group 10No 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 7
2、7.080.20!%CwP“2328445www.din.deDDIN EN 10027-2Designation systems for steels Part 2: Numerical system;English version EN 10027-2:2015,English translation of DIN EN 10027-2:2015-07Bezeichnungssysteme fr Sthle Teil 2: Nummernsystem;Englische Fassung EN 10027-2:2015,Englische bersetzung von DIN EN 1002
3、7-2:2015-07Systmes de dsignation des aciers Partie 2: Systme numrique;Version anglaise EN 10027-2:2015,Traduction anglaise de DIN EN 10027-2:2015-07SupersedesDIN EN 10027-2:1992-09www.beuth.deDocument comprises 15 pagesIn case of doubt, the German-language original shall be considered authoritative.
4、06.15 2 A comma is used as the decimal marker. Foreword This document (EN 10027-2:2015) has been prepared by Technical Committee ECISS/TC 100 “General issues” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the DIN-Normenausschuss Eisen und Stahl (DIN
5、Standards Committee Iron and Steel), Working Committee NA 021-00-19-01 UA Einteilung, Benennung und Benummerung von Sthlen. Amendments This standard differs from DIN EN 10027-2:1992-09 as follows: a) in Subclause 4.3, the wording has been modified; b) in Clause 5, the number of digits for the sequen
6、tial number has been extended to 4 and a NOTE as well as an explanatory text has been added; c) in Annex A (A.9), the postal address of the Europische Stahlregistratur has been updated; d) the wording of the standard and Table 1 has been editorially revised. Previous editions DIN 17007-1: 1959x-04 D
7、IN 17007-2: 1961-09 DIN EN 10027-2: 1992-09 DIN EN 10027-2:2015-07 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10027-2 April 2015 ICS 77.080.20 Supersedes EN 10027-2:1992English Version Designation systems for steels - Part 2: Numerical system Systmes de dsignation des aciers - Partie 2: Sy
8、stme numrique Bezeichnungssysteme fr Sthle - Teil 2: NummernsystemThis European Standard was approved by CEN on 7 February 2015. 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 standar
9、d 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
10、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 Republ
11、ic, 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 C
12、OMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10027-2:2015 EEN 10027
13、-2:2015 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principles 4 5 Structure of steel numbers .5 Annex A (normative) Provisions and procedures for the allocation of steel numbers .8 Annex B (normative) Guidance for completing forms I and II . 10 DIN
14、 EN 10027-2:2015-07 EN 10027-2:2015 (E) 3 Foreword This document (EN 10027-2:2015) has been prepared by Technical Committee ECISS/TC 100 “General issues”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an ide
15、ntical text or by endorsement, at the latest by October 2015, and conflicting national standards shall be withdrawn at the latest by October 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 hel
16、d responsible for identifying any or all such patent rights. This document supersedes EN 10027-2:1992. In comparison with EN 10027-2:1992, the following significant changes were made: a) in 4.3 the wording was modified; b) in Clause 5 the number of digits for the sequential number were extended to 4
17、 and a NOTE as well as an explanatory text were added; c) the standard was revised editorially. This document is the second Part of the European Standard “Designation systems for steels“, the first Part being “Steel names“. According to the CEN-CENELEC Internal Regulations, the national standards or
18、ganizations 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, Luxembour
19、g, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 10027-2:2015-07 EN 10027-2:2015 (E) 4 1 Scope 1.1 This European Standard specifies a numbering system, referred to as steel numbers, for the designation of
20、steel grades. It deals with the structure of steel numbers and the organization for their registration, allocation and dissemination. Such steel numbers are complementary to steel names set out in EN 10027-1. This European Standard is applicable to steels specified in European Standards. This Europe
21、an Standard may be applied to national steels and proprietary steels. NOTE Although the scope of the systems is limited to steel, it is structured so as to be capable of being extended to include other industrially produced materials. 1.2 Steel numbers established in accordance with this system have
22、 a fixed number of digits (see Clause 5). They are better suited for data processing than steel names established in accordance with EN 10027-1. 1.3 For steels specified in European Standards the application for allocation of steel numbers (see A.6 to A.9) is the responsibility of the ECISS Technica
23、l Committee concerned. For national steel grades, the responsibility is that of the national competent body. NOTE Applications from European organizations having a specified interest in the standardization of steel and steel products (e.g. ASD, EUROFER) are submitted via the ECISS Central Secretaria
24、t (see A.9). 2 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 (includ
25、ing any amendments) applies. EN 10020, Definition and classification of grades of steel EN 10027-1, Designation systems for steels Part 1: Steel names EN 10079, Definition of steel products 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10020 and EN
26、10079 apply. 4 Principles 4.1 Each steel number shall refer only to one steel grade. Conversely, each steel grade shall correspond to one steel number. Accordingly, a number allocated to a steel shall not, in principle (see 4.3), be used for any other steel grade (see A.1 and A.2). 4.2 Steel numbers
27、 shall be allocated by the European Registration Office in accordance with Annex A. 4.3 The European Registration Office (see A.9) shall revise the list of registered steels at appropriate intervals. The object of such revisions is to review, in cooperation with the bodies responsible for the applic
28、ation of steel numbers, those steel numbers for steels no longer in production. The revised list of registered steels is published on the internet (www.stahldaten.de). Steel numbers deleted in accordance with the above procedure shall not be re-allocated to future steel grades. NOTE Information conc
29、erning deleted steel grades can be received from the European Registration Office. DIN EN 10027-2:2015-07 EN 10027-2:2015 (E) 5 4.4 Steel numbers shall not normally be changed. If, under exceptional circumstances, a change is unavoidable, it shall be in accordance with 4.1, 4.2 and 4.3. 5 Structure
30、of steel numbers 1. XX XX XX Sequential number Steel group number (see Table 1) Material group number (1 = Steel see Note) NOTE Numbers 2 to 9 of the material group may be allocated to other materials. See note to 1.1 or 1.3. For allocating new steel numbers with a 4 digit sequential number it shall
31、 be ensured that the 1sttwo digits of the sequential number are completely filled (e.g. 1.xx99) before allocating the last two digits of the sequential number (e.g. 1.xx9901). DIN EN 10027-2:2015-07 EN 10027-2:2015 (E) 6 Table 1 Steel group number a, bNon-alloy steels Alloy steels Base steels Qualit
32、y steels Special steels Quality steels Special steels Tool steels Miscellane-ous steels Stainless and heat resisting steels Structural, pressure vessel and engineering steels 00 90 10 20 30 40 50 60 70 80 Base steels Steels with special physical properties Cr Stainless steel with 16 40; 40 100; 100)
33、; c) treatment condition, using the symbols in accordance with EN 10027-1, for which the specified properties apply. See B.6. EXAMPLE FL 16 N indicates a flat product equal to or less than 16 mm thick, in the normalized condition. DIN EN 10027-2:2015-07 EN 10027-2:2015 (E) 11 B.5 Chemical compositio
34、n Express chemical composition limits as, for example, 0.130.18 (not .13-.18 or 0.13 to 0.18), 1.50, 0.040. B.6 Mechanical properties The symbols used are as follows: Re= specified yield strength (ReHor Rp0,2) in MPa, with an indication of the type (e.g. ReH 240) Rm= specified tensile strength, in M
35、Pa; (e.g. 400-650, 700) A or A80= minimum specified percentage elongation after fracture (see Form II) KVmin= minimum impact energy in Joules (J) using a Charpy-V-notch test piece: L = longitudinal test piece T = transverse test piece RT = room temperature TTKV= maximum transition temperature in C,
36、of the impact energy/testing temperature curve, with KV = 27 J as transition criterion. B.7 Specified in The standard or specification in which the steel grade is specified shall be indicated. B.8 Application Indicate application (e.g. structural steels, engineering steel, steel for case hardening,
37、for welding electrodes, for turbines, tool steels, for manufacturing wire ropes, etc.). B.9 Characteristics Indicate characteristics (e.g. suitable for cold hardening or cold extrusion, non-magnetic, etc.). B.10 Additional information Where the space elsewhere in the form is not sufficient for an ex
38、act description of the steel concerned, use the space headed “Additional information“. B.11 Warning note Organizations and individuals who deal with the allocation and administration of steel numbers take no position with regard to the validity of any patent rights claimed in connection with any ste
39、el under consideration. Users of steel numbers are expressly advised that the determination of the validity of any such patent rights and the risk of infringement is entirely their own responsibility. DIN EN 10027-2:2015-07 EN 10027-2:2015 (E) 12 Form I The allocation of steel numbers where chemical
40、 composition is the primary specifying criterion Requester Name Organization Address Telephone, telefax, e-mail Information regarding Steel number Steel name ProductaC % Si % Mn % P % S % Form Thickness in mm Condition Requester (R) 1. Assigner (A) 1. Cr % Mo % Ni % Specified in Application Characte
41、ristics Date Additional information (of R or A): aFor product names use the terms and definitions in EN 10079. DIN EN 10027-2:2015-07 EN 10027-2:2015 (E) 13 Form II The allocation of steel numbers where mechanical properties are the primary specifying criteria Requester Name Organization Address Tel
42、ephone, telefax, e-mail Information regarding Steel number Steel name ProductaReMPa RmMPa bAmin.A80 min.KVmin., RTTTKV, max.Form Thickness, in mm Condition L J T J L C T C Requester (R) 1. Assigner (A) 1. Cr % Si % Mn % P % S % Specified in Application Characteristics Date Additional information (of R or A): aFor product names use the terms and definitions in EN 10079. bDelete inappropriate symbol. DIN EN 10027-2:2015-07
