SIST EN 10027-2:2015

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 Abschnitt 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 zu stellen:
-   für in Europäischen Normen enthaltene Stähle durch das zuständige Technische Komitee des ECISS;
-   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. ASD, EUROFER) können über das ECISS-Zentralsekretariat eingereicht werden (siehe A.9).

Systèmes de désignation des aciers - Partie 2: Système numérique

1.1   La présente norme européenne 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.
Cette présente norme européenne s‘applique pour les nuances d´aciers définies dans les normes européennes. Elle peut également être employée pour les nuances d´aciers nationales et 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 chiffres (voir article 5). 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.
1.3   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 concerné de l’ECISS. 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´ASD, 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

• Status: Published
• Public Enquiry End Date: 31-Jan-2014
• Publication Date: 08-Jun-2015
• ICS: 01.040.77 - Metallurgy (Vocabularies)
• ICS: 77.080.20 - Steels
• Technical Committee: IFEK - Ferrous metals
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 26-May-2015
• Due Date: 31-Jul-2015
• Completion Date: 09-Jun-2015
• Ref Project: EN 10027-2:2015 - Designation systems for steels - Part 2: Numerical system

Relations

• Replaces: SIST EN 10027-2:1995 - Designation systems for steels - Part 2: Numerical system
• Effective Date: 01-Jul-2015

Overview

EN 10027-2:2015 - Designation systems for steels - Part 2: Numerical system - defines a standardized numerical designation (steel numbers) for steel grades used across Europe. Published by CEN, it specifies the structure, registration, allocation and dissemination procedures for steel numbers that complement the steel names defined in EN 10027-1. Application is obligatory for steels specified in European Standards and optional for national or proprietary steels.

Key topics

• Purpose and principles
  • One-to-one mapping: each steel number refers to a single steel grade and vice versa.
  • Steel numbers are stable (not normally changed) and better suited for data processing than text-based steel names.
• Structure of steel numbers
  • Fixed number of digits organized into: material group number, steel group number (see Table 1 in the standard), and a sequential number.
  • Recent revision extended the sequential number to four digits with rules for orderly allocation.
• Registration and allocation
  • Allocation requests are submitted using Form I (chemical criteria) or Form II (mechanical criteria) per Annex B.
  • The appointed European Registration Office (Stahlinstitut VDEh – Europäische Stahlregistratur, www.stahldaten.de) administers the registry and publishes registered steels.
  • For European-standard steels allocation responsibility lies with the relevant ECISS Technical Committee; for national steels, the national competent body handles allocation.
• Management rules
  • Deleted steel numbers are retained in records and must not be re-allocated.
  • Allocation is based on significant differences in material characteristics (chemical composition, mechanical properties, processing suitability, application-specific traits).

Applications

EN 10027-2:2015 is practical for:

• Manufacturers, standard writers and registrars who need consistent, machine-readable steel grade identifiers.
• ERP, PLM and materials databases that require unambiguous numeric keys for steels for procurement, traceability and quality control.
• Test labs and certification bodies issuing reports that reference standardized steel numbers.
• National standards bodies and industry committees managing steel specifications and cross-references.

Who uses this standard

• Steel producers and mills
• Standards committees (ECISS)
• National competent bodies for steel registration
• Engineers, purchasers and database administrators involved in materials identification and data exchange

Related standards

• EN 10027-1 - Steel names (complements the numerical system)
• EN 10020 - Definition and classification of grades of steel
• EN 10079 - Definition of steel products

Keywords: EN 10027-2:2015, steel numbers, designation systems for steels, numerical system, European Registration Office, steel grade designation, allocation procedures, EN 10027-1, steel group number.

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

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

Provisions and procedures for the allocation of steel numbers .8 Annex B (normative)
Guidance for completing forms I and II . 10
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

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

Tool steels Miscellane-ous steels Stainless and heat resisting steels Structural, pressure vessel and engineering steels 00 90
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
...