EN 10028-5:2017

• Abstract:

  This European Standard specifies the requirements for flat products for pressure equipment made of thermomechanically rolled steels as specified in Table 1.; The steels are not suitable for hot forming.; NOTE 1 At the time of publication of this European Standard, no sufficient data for the standardization of the elevated temperature properties of these steels was available.; If their use at such temperatures is intended the conditions for this should be specially agreed between the interested parties.; The requirements of EN 10028 1:2017 also apply.; NOTE 2 Once this European Standard is published in the EU Official Journal (OJEU) under Directive 2014/68/EU, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 2014/68/EU is limited to technical data of materials in this European Standard (Part 1 and the other relevant part of the series) 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 Directive 2014/68/EU are satisfied, needs to be done.

• Status: Published
• Publication Date: 25-Jul-2017
• Withdrawal Date: 30-Jan-2018
• ICS: 77.140.30 - Steels for pressure purposes
• 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: 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
• Start Date: 14-Nov-2025
• 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 49 OJ Date: 09-Feb-2018
• Directive:

  ---

  Not Harmonized97/23/EC - Pressure equipment
• Ref Project: SIST EN 10028-5:2017 - Flat products made of steels for pressure purposes - Part 5: Weldable fine grain steels, thermomechanically rolled

• Replaces: EN 10028-5:2009 - Flat products made of steels for pressure purposes - Part 5: Weldable fine grain steels, thermomechanically rolled
• Effective Date: 02-Aug-2017
• Refers: EN 10204:2004 - Metallic products - Types of inspection documents
• Effective Date: 28-Jan-2026
• Refers: EN 10020:2000 - Definition and classification of grades of steel
• Effective Date: 28-Jan-2026
• Refers: EN 1011-2:2001 - Welding - Recommendations for welding of metallic materials - Part 2: Arc welding of ferritic steels
• Effective Date: 28-Jan-2026
• Refers: EN 1011-1:2009 - Welding - Recommendations for welding of metallic materials - Part 1: General guidance for arc welding
• Effective Date: 28-Jan-2026
• Refers: EN 10028-1:2017 - Flat products made of steels for pressure purposes - Part 1: General requirements
• Effective Date: 28-Jan-2026
• Referred By: EN 13445-2:2026 - Unfired pressure vessels - Part 2: Materials
• Effective Date: 15-Jul-2026
• Referred By: EN 12542:2020 - LPG equipment and accessories - Static welded steel cylindrical pressure vessels, serially produced for the storage of Liquefied Petroleum Gas (LPG) having a volume not greater than 13 m³ - Design and manufacture
• Effective Date: 28-Jan-2026
• Referred By: EN 14893:2014 - LPG equipment and accessories - Transportable Liquefied Petroleum Gas (LPG) welded steel pressure drums with a capacity between 150 litres and 1 000 litres
• Effective Date: 28-Jan-2026
• Referred By: EN 764-4:2014 - Pressure equipment - Part 4: Establishment of technical delivery conditions for metallic materials
• Effective Date: 28-Jan-2026
• Referred By: EN 13322-1:2003 - Transportable gas cylinders - Refillable welded steel gas cylinders - Design and construction - Part 1: Carbon steel
• Effective Date: 28-Jan-2026
• Referred By: EN 14208:2004 - Transportable gas cylinders - Specification for welded pressure drums up to 1000 litre capacity for the transport of gases - Design and construction
• Effective Date: 28-Jan-2026
• Referred By: EN 13445-2:2021+A1:2023 - Unfired pressure vessels - Part 2: Materials
• Effective Date: 28-Jan-2026
• Referred By: EN 13480-2:2024 - Metallic industrial piping - Part 2: Materials
• Effective Date: 28-Jan-2026
• Referred By: EN 13084-6:2004 - Free-standing chimneys - Part 6: Steel liners - Design and execution
• Effective Date: 28-Jan-2026

Overview

EN 10028-5:2017 - "Flat products made of steels for pressure purposes - Part 5: Weldable fine grain steels, thermomechanically rolled" is a CEN material standard that specifies requirements for thermomechanically rolled, weldable fine-grain steels used as flat products for pressure equipment. The standard covers steel grades (e.g., P355M, P420M, P460M and their low-temperature variants P...ML1/P...ML2), delivery condition, chemical composition, mechanical properties, impact energy requirements and inspection/test rules. These steels are not suitable for hot forming, and the standard notes that elevated-temperature properties were not standardized at publication - use at elevated temperatures must be specially agreed.

Key topics and technical requirements

• Scope and classification: Defines steel grades and three quality series (basic, −40 °C, −50 °C low-temperature variants). All steels are classified as alloy special steels per EN 10020.
• Delivery condition: Materials must be supplied in the thermomechanically rolled condition.
• Chemical composition: Cast-analysis limits for C, Si, Mn, P, S, Al, N and alloying elements are given (see Table 1). Product-analysis tolerances are specified (see Table 2).
• Carbon equivalent (CEV): Optional maximum CEV values may be agreed at order time for weldability considerations (Table 3).
• Mechanical properties: Yield/tensile strength and elongation limits at room temperature; specific values per grade and thickness ranges (Tables 4).
• Impact testing: Minimum transverse impact energy values specified by grade and temperature; optional agreement to require 40 J minimum or mid-thickness test-piece sampling.
• Inspection & testing: Sampling, tests, marking and inspection document types follow EN 10028-1:2017; EN 10204 inspection certificates apply.
• Weldability guidance: Informative Annex A provides welding information; EN 1011 series referenced for welding recommendations.
• Regulatory note: After publication in the OJEU under Directive 2014/68/EU, presumption of conformity is limited to technical data - suitability for a specific item of equipment must still be assessed against design requirements.

Applications and users

Practical applications:

• Pressure vessels, boilers, heat exchangers, tanks and pressure equipment where flat steel products are required.
• Situations requiring fine-grain, weldable steels with defined low-temperature toughness.

Who uses this standard:

• Material engineers and metallurgists specifying steel for pressure equipment
• Procurement and quality managers ordering plates and sheets
• Fabricators and welding engineers assessing weldability and CEV limits
• Inspectors, certification bodies and designers verifying material data against design and regulatory requirements

Related standards

• EN 10028-1:2017 - General requirements for flat products for pressure purposes
• EN 1011-1 / EN 1011-2 - Welding recommendations (general and ferritic steels)
• EN 10020:2000 - Steel classification
• EN 10204:2004 - Types of inspection documents

Keywords: EN 10028-5:2017, weldable fine grain steels, thermomechanically rolled, pressure equipment, P355M, P420M, P460M, carbon equivalent, impact energy, material specification.

SLOVENSKI STANDARD
01-oktober-2017
1DGRPHãþD
SIST EN 10028-5:2009
]UQDWDMHNOD3ORãþDWLMHNOHQLL]GHONL]DWODþQHSRVRGHGHO9DULYDGUREQR
WHUPRPHKDQVNRYDOMDQD
Flat products made of steels for pressure purposes - Part 5: Weldable fine grain steels,
thermomechanically rolled
Flacherzeugnisse aus Druckbehälterstählen - Teil 5: Schweißgeeignete
Feinkornbaustähle, thermomechanisch gewalzt
Produits plats en acier pour appareils à pression - Partie 5: Aciers soudable à grains fins,
laminés thermomécaniquement
Ta slovenski standard je istoveten z: EN 10028-5:2017
ICS:
77.140.30 Jekla za uporabo pod tlakom Steels for pressure purposes
77.140.50 3ORãþDWLMHNOHQLL]GHONLLQ Flat steel products and semi-
SROL]GHONL products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 10028-5
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2017
EUROPÄISCHE NORM
ICS 77.140.30; 77.140.50 Supersedes EN 10028-5:2009
English Version
Flat products made of steels for pressure purposes - Part
5: Weldable fine grain steels, thermomechanically rolled
Produits plats en acier pour appareils à pression - Flacherzeugnisse aus Druckbehälterstählen - Teil 5:
Partie 5 : Aciers soudable à grains fins, laminés Schweißgeeignete Feinkornbaustähle,
thermomécaniquement thermomechanisch gewalzt
This European Standard was approved by CEN on 7 May 2017.

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, Serbia, 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
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10028-5:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Tolerances on dimensions . 4
5 Calculation of mass . 4
6 Classification and designation . 5
6.1 Classification . 5
6.2 Designation . 5
7 Information to be supplied by the purchaser . 5
7.1 Mandatory information . 5
7.2 Options . 5
7.3 Example for ordering. 5
8 Requirements . 6
8.1 Steelmaking process . 6
8.2 Delivery condition . 6
8.3 Chemical composition . 6
8.4 Mechanical properties . 6
8.5 Surface condition . 6
8.6 Internal soundness . 6
9 Inspection . 6
9.1 Types of inspection and inspection documents . 6
9.2 Tests to be carried out . 6
9.3 Retests, sorting and reprocessing . 6
10 Sampling . 7
11 Test methods . 7
12 Marking . 7
Annex A (informative) Information on weldability . 11
Annex B (informative) Changes to the previous version EN 10028-5:2009 . 12
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of Directive 2014/68/EU . 13
European foreword
This document (EN 10028-5:2017) has been prepared by Technical Committee ECISS/TC 107 “Steels
for pressure purposes”, the secretariat of which is held by DIN.
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 January 2018 and conflicting national standards shall
be withdrawn at the latest by January 2018.
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 10028-5:2009.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of Directive 2014/68/EU.
For relationship with Directive 2014/68/EU, see informative Annex ZA, which is an integral part of this
document.
A list of changes between this document and the previous version can be found in Annex B.
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.
1 Scope
This European Standard specifies the requirements for flat products for pressure equipment made of
weldable fine grain thermomechanically rolled steels as specified in Table 1.
The steels are not suitable for hot forming.
NOTE 1 At the time of publication of this European Standard, no sufficient data for the standardization of the
elevated temperature properties of these steels was available.
If their use at such temperatures is intended the conditions for this should be specially agreed between
the interested parties.
The requirements of EN 10028-1:2017 also apply.
NOTE 2 Once this European Standard is published in the EU Official Journal (OJEU) under Directive
2014/68/EU, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 2014/68/EU is
limited to technical data of materials in this European Standard (Part 1 and the other relevant part of the series)
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 Directive 2014/68/EU are satisfied, needs to be done.
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 1011-1:2009, Welding — Recommendations for welding of metallic materials — Part 1: General
guidance for arc welding
EN 1011-2:2001, Welding — Recommendations for welding of metallic materials — Part 2: Arc welding of
ferritic steels
EN 10020:2000, Definition and classification
...