EN 10120:2017

Steel sheet and strip for welded gas cylinders

This European Standard specifies requirements for sheet and strip up to 5 mm thickness of steels listed in Table 1 and intended for the manufacture of welded gas cylinders.
The general technical delivery conditions in EN 10021 also apply to products supplied in accordance with this European Standard.

Stahlblech und -band für geschweißte Gasflaschen

Diese Europäische Norm legt die Anforderungen an Blech und Band bis 5 mm Dicke aus Stählen nach Tabelle 1 fest, das für die Herstellung geschweißter Gasflaschen bestimmt ist.
Für nach dieser Europäischen Norm gelieferte Erzeugnisse gelten zusätzlich die allgemeinen technischen Lieferbedingungen nach EN 10021.

Tôles et bandes pour bouteilles à gaz soudées en acier

La présente Norme européenne définit les exigences relatives aux tôles et bandes d'épaisseur inférieure ou égale à 5 mm en aciers mentionnés au Tableau 1 et destinées à la fabrication de bouteilles à gaz soudées.
Les conditions techniques de livraison de l'EN 10021 s'appliquent également aux produits fournis en conformité avec la présente Norme européenne.

Jeklene pločevine in trakovi za plinske jeklenke

Ta evropski standard določa zahteve za vroče valjane pločevine in trakove do debeline 5 mm jekel, naštetih v razpredelnici 1 in namenjenih za proizvodnjo varilnih plinskih jeklenk.

General Information

• Status: Published
• Publication Date: 25-Jul-2017
• Withdrawal Date: 30-Jan-2018
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: ECISS/TC 107 - Steels for pressure purposes
• Drafting Committee: ECISS/TC 107 - Steels for pressure purposes
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 04-Mar-2023
• Completion Date: 04-Mar-2023
• Ref Project: SIST EN 10120:2017 - Steel sheet and strip for welded gas cylinders

Relations

• Replaces: EN 10120:2008 - Steel sheet and strip for welded gas cylinders
• Effective Date: 02-Aug-2017

Overview

EN 10120:2017 is a European Standard published by CEN that specifies the technical requirements for steel sheet and strip up to 5 mm thickness, intended specifically for the manufacture of welded gas cylinders. This standard ensures consistent quality and safety in the production of steel materials for pressure containers used in various gas storage and transport applications. It applies to non-alloy and alloy steels suitable for welded cylinders and aligns with the general delivery conditions set out in EN 10021.

Key Topics

• Scope and Steel Grades
  EN 10120:2017 covers flat steel products used in welded gas cylinders, focusing on sheet and strip with thickness up to 5 mm. It includes several grades of steels such as P245NB, P265NB, P310NB, P355NB, and HCT600XB, each classified according to EN 10020. The standard regulates chemical composition, mechanical properties, and delivery conditions ensuring materials meet stringent safety and performance criteria.

• Manufacturing Process
  The steel production process involves electric arc or oxygen steelmaking with strict control on melting, de-oxidation, and finishing to maintain steel quality. Delivery conditions include hot rolled normalized, hot rolled, and cold rolled, with specific guidance on normalizing treatments to retain mechanical properties desired for gas cylinder manufacture.

• Mechanical and Chemical Requirements
  Specifications include maximum allowable deviations for chemical elements like carbon, silicon, manganese, phosphorus, sulfur, aluminum, nitrogen, niobium, and titanium. Mechanical properties such as yield strength, tensile strength, elongation, and recommended normalizing temperatures are precisely defined for each steel grade to guarantee durability and safety under pressure conditions.

• Weldability and Surface Conditions
  The steels covered are suitable for fusion welding processes commonly used in gas cylinder fabrication. Surface conditions vary per application but generally require products to be supplied in rolled, descaled, oiled, or cold rolled states with allowances for minor imperfections that do not affect performance.

• Inspection and Testing
  EN 10120 mandates rigorous testing protocols including cast analysis, tensile testing, and dimensional inspections. Optional product analysis can be requested. Inspection documents conforming to EN 10204 (types 3.1 or 3.2) provide traceability and certification of compliance. Sampling and retesting procedures align with EN 10021 to ensure consistent quality control throughout production batches.

Applications

• Welded Gas Cylinders
  The primary application of EN 10120:2017 is for manufacturing welded gas cylinders used in storing and transporting gases under pressure. This includes industrial gases, compressed natural gas (CNG), liquefied petroleum gas (LPG), and other specialty gases.

• Pressure Vessel Components
  The steel grades and delivery conditions regulated by this standard are suitable for components that require high strength, toughness, and resistance to aging and corrosion due to exposure to various gases and environmental conditions.

• Safety-Critical Steel Products
  By standardizing steel properties and manufacturing processes, EN 10120 supports safe gas containment solutions critical in automotive, energy, healthcare, and manufacturing industries that rely on pressurized gas storage.

Related Standards

• EN 10021 – General technical delivery conditions for steel products, ensuring consistency in the delivery and inspection of steel sheets and strips
• EN 10020 – Definitions and classification of steel grades
• EN 10027-1/2 – Steel designation systems by names and numbers
• EN 10051 & EN 10131 – Tolerances related to steel sheet and strip for dimensional accuracy
• EN 10204 – Types of inspection documents for product certification
• ISO 6892-1 & ISO 377 – Standardized methods for tensile testing and sampling
• CEN/TR 10261 – Guidance on determination of chemical composition in steels

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EN 10120:2017 provides a comprehensive framework that facilitates the reliable production of steel materials for welded gas cylinders, enhancing safety, quality, and performance. Compliance with this standard benefits manufacturers, suppliers, and end-users by ensuring that steel sheets and strips meet rigorous technical and inspection standards essential for pressurized gas applications.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Stahlblech und -band für geschweißte GasflaschenTôles et bandes pour bouteilles à gaz soudées en acierSteel sheet and strip for welded gas cylinders77.140.50SROL]GHONLFlat steel products and semi-productsICS:Ta slovenski standard je istoveten z:EN 10120:2017SIST EN 10120:2017en,fr,de01-oktober-2017SIST EN 10120:2017SLOVENSKI
STANDARDSIST EN 10120:20081DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10120
July
t r s y ICS
y yä s v rä w r Supersedes EN
s r s t rã t r r zEnglish Version
Steel sheet and strip for welded gas cylinders Tôles et bandes pour bouteilles à gaz soudßes en acier Stahlblech und æband für geschweißte Gasflaschen This European Standard was approved by CEN on
y May
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s r s t rã t r s y ESIST EN 10120:2017

Changes to the previous version EN 10120:2008 . 12 SIST EN 10120:2017

A list of changes between this document and the previous version can be found in Annex A. 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 10120:2017
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