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 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
- 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
Relations
- Effective Date
- 01-Jul-2015
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Referred By
SIST EN 50216-9:2009 - Power transformer and reactor fittings - Part 9: Oil-to-water heat exchanger - Effective Date
- 09-Feb-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
SIST EN 10027-2:2015 - Designation systems for steels - Part 2: Numerical system is a European Standard developed by SIST that establishes a systematic approach to assigning steel numbers (numerical designations) to steel grades. This standard details the structure, registration, allocation, and dissemination procedures for steel numbers, which serve as complementary identifiers to the steel names defined in EN 10027-1.
The principal purpose is to harmonize steel grade identification across Europe, ensuring clarity and consistency for manufacturers, suppliers, and end-users. The numerical system not only supports European steels but can also be used for national and proprietary steels on an optional basis. Although currently designated for steels, the standardized system is designed to be extendable for other industrial materials.
Key Topics
- Steel Number Structure: Defines a fixed-digit numerical system uniquely identifying each steel grade, making it better suited for data processing and database management than text-based steel names.
- Allocation and Registration: Specifies the responsibilities and processes for requesting, reviewing, and allocating steel numbers, with the European Registration Office (Stahlinstitut VDEh) as the central authority.
- One-to-One Correspondence: Ensures every steel grade receives a unique steel number and vice versa, supporting traceability and reducing ambiguity.
- Flexibility and Future Extension: While the system's scope is currently steel grades, its framework allows future expansion to other industrial materials if needed.
- Administrative Procedures: Lays out the guidance for completing application forms for new steel number allocation, outlining necessary information about chemical composition or mechanical properties, product forms, and applications.
- Deleted Number Management: Details how obsolete or withdrawn steel grades are managed in the system to avoid re-allocation of existing numbers, maintaining historical data integrity.
Applications
The adoption of SIST EN 10027-2:2015 provides substantial practical benefits across the steel and manufacturing industries:
- Efficient Data Processing: Numerical designations are easier to manage in electronic systems, improving data consistency across supply chains, material databases, and quality control processes.
- International Trade and Communication: Standardized steel numbers reduce confusion and streamline communication among manufacturers, suppliers, and customers within and outside of Europe.
- Product Development and Specification: Engineers and materials experts can identify, compare, and select steel grades more efficiently in product design, procurement, and testing.
- Quality Assurance and Traceability: Unique steel numbers support traceability from production to end-use, aiding compliance with regulatory and industry standards.
- Optional Use for National and Proprietary Steels: While mandatory for steels covered in European Standards, the system can be leveraged voluntarily by countries and companies for their own steel grades, enhancing harmonization.
- Potential for Broader Material Categorization: The system’s structure can incorporate other industrial materials in the future, paving the way for expanded material designation systems.
Related Standards
- EN 10027-1: Designation systems for steels - Part 1: Steel names; provides complementary alphanumeric designations.
- EN 10020: Definition and classification of grades of steel; supports classification in the numbering system.
- EN 10079: Definition of steel products; assists in naming and categorizing product forms within applications.
Practical Value
By implementing the SIST EN 10027-2:2015 standard, organizations benefit from a robust, internationally recognized system for steel grade identification, facilitating compliance, improving data management, and fostering seamless collaboration in the metallurgical and engineering sectors. The standardized numerical system for steel designation plays a crucial role in modern steel processing, inventory management, and international commerce.
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Frequently Asked Questions
SIST EN 10027-2:2015 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Designation systems for steels - Part 2: Numerical system". This standard covers: 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.
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.
SIST EN 10027-2:2015 is classified under the following ICS (International Classification for Standards) categories: 01.040.77 - Metallurgy (Vocabularies); 77.080.20 - Steels. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 10027-2:2015 has the following relationships with other standards: It is inter standard links to SIST EN 10027-2:1995, SIST EN 10027-1:2016, SIST EN 10020:2000, SIST EN 10079:2007, SIST EN 50216-9:2009, SIST EN 10305-1:2010, SIST EN 15583-2:2012, SIST EN 1503-1:2001, SIST EN 10225-2:2019, SIST EN 10216-2:2003+A2:2007, SIST EN 13674-2:2019, SIST EN 13814:2005, SIST EN 4500-003:2024, SIST EN 10027-1:2005, SIST EN 10085:2002. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 10027-2:2015 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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
...