SIST EN 10027-2:2015
(Main)Designation systems for steels - Part 2: Numerical system
Designation systems for steels - Part 2: Numerical system
This European Standard sets out a numbering system, referred to as steel numbers, for the designation of 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.
Application of this European Standard is obligatory for steels specified in European Standards. Application is optional for 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.
Steel numbers established according to this system have a fixed number of digits (see 5). They are better suited for data processing than steel names established according to EN 10027-1.
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 Technical Committee concerned. For national steel grades, the responsibility is that of the national competent body.
Bezeichnungssysteme für Stähle - Teil 2: Nummernsystem
1.1 Diese Europäische Norm legt ein Nummernsystem für die Bezeichnung von Stahlsorten fest, das im Folgenden als Werkstoffnummernsystem bezeichnet wird. Sie behandelt den Aufbau, die Vergabe, die Registrierung und Bekanntmachung der Werkstoffnummern. Diese Werkstoffnummern gelten zusätzlich zu den Kurznamen nach EN 10027-1.
Die Anwendung dieser Europäischen Norm ist für alle in Europäischen Normen enthaltenen Stähle verbindlich. Auf Wunsch können Werkstoffnummern auch für nationale Stahlsorten einschließlich Werkssorten angewendet werden.
ANMERKUNG Obwohl der Anwendungsbereich des Systems auf Stahl begrenzt ist, ist Vorsorge für eine Erweiterung des Systems zwecks Berücksichtigung auch anderer industriell hergestellter Werkstoffe getroffen worden.
1.2 Die nach diesem Nummernsystem festgelegten Werkstoffnummern haben eine bestimmte Stellenzahl (siehe 5). Sie sind daher für die Datenverarbeitung besser geeignet als die nach EN 10027-1 gebildeten Kurznamen der Stähle.
1.3 Anträge auf die Vergabe von Werkstoffnummern (siehe A.6 bis A.9) sind für in Europäischen Normen enthaltene Stähle durch das zuständige Technische Komitee des ECISS zu stellen.
Für nationale Stahlsorten durch die zuständige nationale Stelle.
ANMERKUNG Anträge europäischer Organisationen, die ein besonderes Interesse an der Normung von Stählen und Stahlerzeugnissen haben (z. B. AECMA, EUROFER) können über das ECISS-Zentralsekretariat eingereicht werden (siehe A.9).
Systèmes de désignation des aciers - Partie 2: Système numérique
1.1 La présente partie 2 de la norme européenne EN 10027 spécifie un système de numérotation pour la désignation des nuances d´aciers. Elle traite de la structure des numéros d´aciers ainsi que de l´organisation pour leur enregistrement, allocation et diffusion. Ce système est dénommé système numérique. Les numéros d´aciers correspondants sont complémentaires des désignations symboliques, décrites dans la partie 1 de l´EN 10027.
L´application de la présente partie 2 de la norme européenne EN 10027 est obligatoire pour les nuances d´aciers définies dans les normes européennes. Elle est facultative pour les nuances d´aciers nationales, y compris les aciers de marque
NOTE Bien que l´objet du système soit limité à l´acier, il est structuré de façon à pouvoir être étendu pour inclure d´autres produits fabriqués industriellement
1.2 Les numéros d´aciers établis conformément à ce système ont un nombre fixe de digits (voir article 4). Ils sont en conséquence mieux adaptés pour le traitement de données que les noms des aciers établis selon la partie 1 de la norme EN 10027-1.
1.3 Pour les nuances d´aciers définies dans les normes européennes, la présentation de la demande d´attribution des numéros d´aciers (voir A.6 à A.9) relève de la responsabilité du Comité Technique ECISS concerné. Pour les nuances d´aciers nationales la même responsabilité incombe à l´organisme national compétent.
NOTE Les demandes provenant d´organisations actives sur le plan européen et ayant un intérêt spécifique dans la normalisation de l´acier, et des produits en acier (telles que, par exemple, l´AECMA, l´EUROFER, etc.) doivent alors être soumises via le Secrétariat Central de l´ECISS (voir A.9).
Sistemi označevanja jekel - 2. del: Številčni sistem
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bezeichnungssysteme für Stähle - Teil 2: NummernsystemSystèmes de désignation des aciers - Partie 2: Système numériqueDesignation systems for steels - Part 2: Numerical system77.080.20JeklaSteels01.040.77Metalurgija (Slovarji)Metallurgy (Vocabularies)ICS:Ta slovenski standard je istoveten z:EN 10027-2:2015SIST EN 10027-2:2015en,fr,de01-julij-2015SIST EN 10027-2:2015SLOVENSKI
STANDARDSIST EN 10027-2:19951DGRPHãþD
SIST EN 10027-2:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10027-2
April 2015 ICS 77.080.20 Supersedes EN 10027-2:1992English Version
Designation systems for steels - Part 2: Numerical system
Systèmes de désignation des aciers - Partie 2: Système numérique
Bezeichnungssysteme für Stähle - 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 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 © 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 ESIST EN 10027-2:2015
EN 10027-2:2015 (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
SIST EN 10027-2:2015
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 identical 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 held 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 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 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. SIST EN 10027-2:2015
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 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 European 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 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 Technical 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 Secretariat (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 (including any amendments) applies. EN 10020, Definition and classification of grades of steel EN 10027-1, Designation systems for steels
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 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 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 application 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 concerning deleted steel grades can be received from the European Registration Office. SIST EN 10027-2:2015
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 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 be ensured that the 1st two 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). SIST EN 10027-2:2015
EN 10027-2:2015 (E) 6 Table 1 — Steel group number a, b Non-alloy steels Alloy steels Base steels Quality 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
< 2,5 % Ni
without Mo, Nb and Ti Mn, Si, Cu Cr-Ni with
≥ 2,M % Cr
< 3 % Cr Cr Cr-B Cr-Si-Mo Cr-Si-Mn-Mo Cr-Si-Mo-V Cr-Si-Mn-Mo-V
01 91 11
21 31 41 51 61 71 81
General structural steels, with Rm < 500 MPa Structural, pressure vessel and engineering steels with C < 0,50 %
Cr-Si Cr-Mn Cr-Mn-Si
Stainless steel with < 2,5 % Ni and Mo, but without Nb and Ti Mn-Si Mn-Cr
Cr-Si Cr-Mn Cr-Mn-B Cr-Si-Mn Cr-Si-V Cr-Mn-V Cr-Si-Mn-V
02 92 12
22 32 42 52 62 72 82
Other structural steels not intended for heat treatment, with Rm < 500 MPa
Structural, pressure vessel and engineering steels with C ≥ M,5M %
Cr-V Cr-V-Si Cr-V-Mn Cr-V-Mn-Si High speed steel with Co
Mn-Cu Mn-V Si-V Mn-Si-V Ni-Si Ni-Mn Ni-Cu Cr-Mo with
< 0,35 % Mo Cr-Mo-B Cr-Mo-W Cr-Mo-W-V
03 93 13
23 33 43 53 63 73 83
Steels with average
< 0,12 % C or Rm < 400 MPa Structural, pressure vessel and engineering steels with special requirements
Cr-Mo Cr-Mo-V Mo-V High speed steel without Co Stainless steel with ≥ 2,5 % ki but without Mo, Nb and Ti Mn-Ti Si-Ti Ni-Mo Ni-Mo-Mn Ni-Mo-Cu Ni-Mo-V Ni-Mn-V Cr-Mo with
≥ M,m5 % Mo
04 94 14
24 34 44 54 64 74 84
Steels with average
≥ M,k2 % C < 0,25 % C or Rm ≥ 4MM Mma < 500 MPa
W Cr-W Wear-res
...
SLOVENSKI STANDARD
oSIST prEN 10027-2:2014
01-januar-2014
6LVWHPLR]QDþHYDQMDMHNHOGHO âWHYLOþQLVLVWHP
Designation systems for steels - Part 2: Numerical system
Bezeichnungssysteme für Stähle - Teil 2: Nummernsystem
Systèmes de désignation des aciers - Partie 2: Système numérique
Ta slovenski standard je istoveten z: prEN 10027-2 rev
ICS:
01.040.77 Metalurgija (Slovarji) Metallurgy (Vocabularies)
77.080.20 Jekla Steels
oSIST prEN 10027-2:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 10027-2:2014
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oSIST prEN 10027-2:2014
EUROPEAN STANDARD
DRAFT
prEN 10027-2 rev
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2013
ICS Will supersede EN 10027-2:1992
English Version
Designation systems for steels - Part 2: Numerical system
Systèmes de désignation des aciers - Partie 2: Système Bezeichnungssysteme für Stähle - Teil 2: Nummernsystem
numérique
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ECISS/TC 100.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 10027-2 rev:2013: E
worldwide for CEN national Members.
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oSIST prEN 10027-2:2014
prEN 10027-2:2013 (E)
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
2
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oSIST prEN 10027-2:2014
prEN 10027-2:2013 (E)
Foreword
This document (prEN 10027-2:2013) has been prepared by Technical Committee ECISS/TC 100 “General
issues”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 10027-2:1992.
This document is the second Part of the European Standard "Designation systems for steels", the first Part
being "Steel names".
3
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oSIST prEN 10027-2:2014
prEN 10027-2:2013 (E)
1 Scope
1.1 This European Standard sets out a numbering system, referred to as steel numbers, for the designation
of 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.
Application of this European Standard is obligatory for steels specified in European Standards. Application is
optional for 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 according to this system have a fixed number of digits (see 5). They are
better suited for data processing than steel names established according to 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 Technical 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. AECMA, EUROFER) are submitted via the ECISS Central Secretariat (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 (including 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 10079 shall 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 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
application of steel numbers, those steel numbers for steels no longer in production. Such steel numbers are
transferred to an annex to the list for a transitional period and eventually deleted. The revised list of registered
steels is published on Internet.
Steel numbers deleted according to the above procedure may become available for re-allocation to future
steel grades.
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.
4
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oSIST prEN 10027-2:2014
prEN 10027-2:2013 (E)
5 Structure 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 may be allocated to other materials. See note to clause 1
5
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oSIST prEN 10027-2:2014
prEN 10027-2:2013 (E)
a, b
Table 1 — Steel group number
Non-alloy steels Alloy steels
Base steels Quality steels Special Quality steels Special steels
steels
Tool steels Miscellane- Stainless and heat Structural, pressure vessel and engineering steels
ous steels resisting steels
00 90 10 20 30 40 50 60 70 80
Base steels Steels with Cr Stainless steel with Mn, Si, Cu Cr-Ni with Cr Cr-Si-Mo
special < 2,5 % Ni without ≥ 2,0 % Cr Cr-B Cr-Si-Mn-Mo
physical Mo, Nb and Ti < 3 % Cr Cr-Si-Mo-V
properties Cr-Si-Mn-Mo-V
01 91 11 21 31 41 51 61 71 81
General structural steels, Structural, Cr-Si Stainless steel with Mn-Si Cr-Si Cr-Si-V
with R < 500 MPa
m pressure Cr-Mn < 2,5 % Ni and Mo, Mn-Cr Cr-Mn Cr-Mn-V
vessel and Cr-Mn-Si but without Nb and Cr-Mn-B Cr-Si-Mn-V
engineering Ti Cr-Si-Mn
steels with C
< 0,50 %
02 92 12 22 32 42 52 62 72 82
Other structural steels Structural, Cr-V High speed Mn-Cu Ni-Si Cr-Mo Cr-Mo-W
not intended for heat pressure Cr-V-Si steel with Mn-V Ni-Mn with Cr-Mo-W-V
treatment, with R < 500
m vessel and Cr-V-Mn Co Si-V Ni-Cu < 0,35 %
MPa engineering Cr-V-Mn-Si Mn-Si-V Mo
steels with C Cr-Mo-B
≥ 0,50 %
03 93 13 23 33 43 53 63 73 83
Steels with average Structural, Cr-Mo High speed Stainless steel with Mn-Ti Ni-Mo Cr-Mo
< 0,12 % C or R < 400 pressure Cr-Mo-V steel ≥ 2,5 % Ni but Si-Ti Ni-Mo-Mn with
m
MPa vessel and Mo-V without Co without Mo, Nb and Ni-Mo-Cu ≥ 0,35 %
engineering Ti Ni-Mo-V Mo
steels with Ni-Mn-V
special
requirements
04 94 14 24 34 44 54 64 74 84
Steels with average W Wear- Stainless steel with Mo Cr-Si-Ti
≥ 0,12 % C Cr-W resistant ≥ 2,5 % Ni and Mo, Nb, Ti, V Cr-Mn-Ti
< 0,25 % C or steel but without Nb and W Cr-Si-Mn-Ti
R ≥ 400 MPa Ti
m
< 500 MPa
05 95 15 25 35 45 55 65 75 85
Steels with average Tool steels W-V Bearing Stainless steels B Cr-Ni-Mo with Cr-V Nitriding steels
≥ 0,25 C < 0,55 % C or Cr-W-V steels with special Mn-B < 0,4 % Mo + with
R ≥ 500 MPa additions < 1,65 % Mn < 2 % Ni < 2,0 %
m
Cr
< 700 MPa
6
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oSIST prEN 10027-2:2014
prEN 10027-2:2013 (E)
06 96 16 26 36 46
...
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