EN 10273:2016

• Abstract:

  This European Standard specifies the technical delivery conditions for hot rolled weldable steel bars for the construction of pressure equipment for use at elevated temperatures.; The general technical delivery conditions in EN 10021 also apply to products supplied in accordance with this European Standard.; NOTE Once this European Standard is published in the Official Journal of the European Union (OJEU) under Directive 97/23/EC, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 97/23/EC is limited to technical data of materials in this European Standard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of the Pressure Equipment Directive 97/23/EC are satisfied, needs to be done.

• Status: Published
• Publication Date: 12-Jul-2016
• Withdrawal Date: 30-Jan-2017
• ICS: 77.140.30 - Steels for pressure purposes
• ICS: 77.140.60 - Steel bars and rods
• Technical Committee: ECISS/TC 107 - Steels for pressure purposes
• Drafting Committee: ECISS/TC 107 - Steels for pressure purposes
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 13-Jun-2022
• Completion Date: 17-Sep-2026
• Directive: Harmonized Standard2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
  OJ Ref: C, C 389 OJ Date: 17-Nov-2017
• Directive:

  ---

  Not Harmonized97/23/EC - Pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: SIST EN 10273:2016 - Hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties

• Replaces: EN 10273:2007 - Hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties
• Effective Date: 20-Jul-2016
• Refers: EN 10027-2:2015 - Designation systems for steels - Part 2: Numerical system
• Effective Date: 28-Jan-2026
• Refers: EN 10308:2001 - Non destructive testing - Ultrasonic testing of steel bars
• Effective Date: 28-Jan-2026
• Refers: EN 10052:1993 - Vocabulary of heat treatment terms for ferrous products
• Effective Date: 28-Jan-2026
• Refers: EN ISO 148-1:2010 - Metallic materials - Charpy pendulum impact test - Part 1: Test method (ISO 148-1:2009)
• Effective Date: 28-Jan-2026
• Refers: EN ISO 6892-1:2009 - Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2009)
• Effective Date: 28-Jan-2026
• Refers: EN 10060:2003 - Hot rolled round steel bars for general purposes - Dimensions and tolerances on shape and dimensions
• Effective Date: 28-Jan-2026
• Refers: EN 10168:2004 - Steel products - Inspection documents - List of information and description
• Effective Date: 28-Jan-2026
• Refers: EN 10079:2007 - Definition of steel products
• Effective Date: 28-Jan-2026
• Refers: EN 10021:2006 - General technical delivery conditions for steel products
• Effective Date: 28-Jan-2026
• Refers: EN 10020:2000 - Definition and classification of grades of steel
• Effective Date: 28-Jan-2026
• Refers: EN 10204:2004 - Metallic products - Types of inspection documents
• Effective Date: 28-Jan-2026
• Refers: EN 10221:1995 - Surface quality classes for hot-rolled bars and rods - Technical delivery conditions
• Effective Date: 28-Jan-2026
• Refers: EN 10058:2018 - Hot rolled flat steel bars and steel wide flats for general purposes - Dimensions and tolerances on shape and dimensions
• Effective Date: 28-Jan-2026
• Refers: EN ISO 6892-2:2011 - Metallic materials - Tensile testing - Part 2: Method of test at elevated temperature (ISO 6892-2:2011)
• Effective Date: 28-Jan-2026

Overview

EN 10273:2016 is a CEN European Standard that defines the technical delivery conditions for hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties. It covers the manufacture, delivery condition, chemical composition, mechanical properties and testing requirements for steel bars and rods intended for construction of pressure equipment that will operate at elevated temperatures. The general delivery rules in EN 10021 also apply. Note: presumption of conformity to the Pressure Equipment Directive (2014/68/EU) is limited to the material data in this standard; equipment designers must verify material adequacy for specific items.

Key topics and requirements

• Scope and classification
  • Applies to hot-rolled, weldable steel bars/rods for pressure equipment used at elevated temperatures. Steel grades include non-alloy and alloy steels (examples: P235GH, 16Mo3, P355NH).
• Delivery conditions
  • Specifies standard delivery conditions (see Table 5) including normalizing, quenching & tempering (QT), or untreated where agreed. Includes guidance on normalizing rolling and heat treatment options.
• Chemical composition
  • Cast and product analysis requirements; allowable deviations between cast and product analyses are defined (see Tables 2 and 3). Option to set maximum carbon equivalent for weldability concerns.
• Mechanical properties
  • Tensile strength, proof strength (Rp0.2) and verification at room and specified elevated temperatures. Impact energy requirements and testing temperatures (Charpy) are included.
• Weldability and heat treatment
  • Requirements for weldability data and optional delivery of suitable welding conditions. Annex A provides heat treatment guidelines for select grades.
• Inspection and testing
  • Defines types of inspection documents (EN 10204), sampling frequency, and required tests: chemical analysis, tensile tests (EN ISO 6892‑1/2), Charpy impact (EN ISO 148‑1), ultrasonic testing (EN 10308) and other NDT as agreed.
• Marking and documentation
  • Rules for marking, traceability and inspection certificates to accompany deliveries.

Applications and who uses this standard

• Typical users:
  • Manufacturers of pressure vessels, boilers, heat exchangers and piping for high-temperature service
  • Steel mills and bar producers specifying production and delivery requirements
  • Procurement and quality engineers specifying material for pressure equipment
  • Welding engineers, fabricators and third-party inspectors responsible for weldability and testing
  • Design engineers verifying material data against the Pressure Equipment Directive (PED)
• Practical applications:
  • Specifying material for elevated-temperature service in petrochemical, power generation, refinery and industrial process equipment where strength and creep/rupture behaviour at temperature are critical.

Related standards

• EN 10021 (general delivery conditions)
• EN 10204 (inspection documents)
• EN ISO 6892‑1 / EN ISO 6892‑2 (tensile tests)
• EN ISO 148‑1 (Charpy impact)
• EN 10058 / EN 10059 / EN 10060 / EN 10061 (dimensional standards)
• EN 10308 (ultrasonic testing)

Keywords: EN 10273:2016, hot rolled weldable steel bars, pressure purposes, elevated temperature properties, pressure equipment, weldability, mechanical testing, chemical composition.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Warmgewalzte schweißgeeignete Stäbe aus Stahl für Druckbehälter mit festgelegten Eigenschaften bei erhöhten TemperaturenBarres laminées à chaud en acier soudables pour appareils à pression, avec des caractéristiques spécifiées aux températures élevéesHot rolled weldable steel bars for pressure purposes with specified elevated temperature properties77.140.60Jeklene palice in drogoviSteel bars and rods77.140.30Jekla za uporabo pod tlakomSteels for pressure purposesICS:Ta slovenski standard je istoveten z:EN 10273:2016SIST EN 10273:2016en,fr,de01-oktober-2016SIST EN 10273:2016SLOVENSKI
STANDARDSIST EN 10273:20081DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10273
July
t r s x ICS
y yä s v rä u râ
y yä s v rä x r Supersedes EN
s r t y uã t r r yEnglish Version
Hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties Barres laminßes à chaud en acier soudable pour appareils à pressioná avec des caractßristiques spßcifißes aux tempßratures ßlevßes
Warmgewalzte schweißgeeignete Stäbe aus Stahl für Druckbehälter mit festgelegten Eigenschaften bei erhöhten Temperaturen This European Standard was approved by CEN on
s w April
t r s xä
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 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 x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s r t y uã t r s x ESIST EN 10273:2016

Guidelines for heat treatment . 24 Annex B (informative) Reference data on creep strain and creep rupture . 25 Annex C (informative)
Significant changes to the previous version EN 10273:2007 . 28 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of Directive 2014/68/EU . 29 SIST EN 10273:2016

normalizing rolling rolling process in which the final deformation process is carried out in a certain temperature range leading to a material condition equivalent to that obtained after normalizing so that the specified values of the mechanical properties are retained even after normalizing Note 1 to entry: The symbol for this delivery condition and for the normalized condition is N. Note 2 to entry: Definition is deviating from EN 10052:1993. 3.2
quenching and tempering [as defined in EN 10052:1993] Note 1 to entry: Quenching and tempering (symbol QT) also includes direct quenching plus tempering. 3.3
purchaser person or organization that orders products in accordance with this European Standard Note 1 to entry: The purchaser is not necessarily, but may be, a manufacturer of pressure equipment. 4 Dimensions and tolerances on dimensions The nominal dimensions and tolerances on dimensions shall be agreed at the time of enquiry and order with reference to the relevant dimensional standard EN 10058, EN 10059, EN 10060 or EN 10061. 5 Calculation of mass A density of 7,85 kg/dm3 shall be used as the basis for the calculation of the nominal mass from the nominal dimensions of all steel grades. SIST EN 10273:2016

footnote i); 5) specification of a maximum carbon equivalent value (see 8.3.3 and Table 4); 6) special surface condition (see 8.5); 7) requirements for and verification of internal soundness (see 8.6); SIST EN 10273:2016
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