SIST EN 10222-4:2017/kFprA1:2021

Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength

This European Standard specifies the technical delivery conditions for forgings for pressure purposes, made of weldable fine grain steels with high proof strength.
NOTE   Once this 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 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 Directive 2014/68/EU are satisfied, needs to be done. The series EN 10222-1 to EN 10222-5 is structured so that the data related to different materials is in the part allocated for that material. The presumption of conformity to the Essential Safety Requirements of Directive 2014/68/EU depends on both the text in part 1 and the data in part 2, 3, 4 or 5.
General information on technical delivery conditions is given in EN 10021.

Schmiedestücke aus Stahl für Druckbehälter - Teil 4: Schweißgeeignete Feinkornbausstähle mit hoher Dehngrenze

Diese Europäische Norm legt die technischen Lieferbedingungen für Schmiedestücke für Druckbehälter aus schweißgeeigneten Feinkornbaustählen mit erhöhter Dehngrenze fest.
ANMERKUNG   Nach Veröffentlichung dieser Norm im Amtsblatt der Europäischen Union (ABl.) unter der Richtlinie 2014/68/EU beschränkt sich die Vermutung der Konformität mit den grundlegenden Sicherheitsanforderungen (ESR, en: essential safety requirements) der Richtlinie 2014/68/EU auf die technischen Daten von Werkstoffen in dieser Norm. Eine Vermutung der Eignung des Werkstoffs für ein bestimmtes Ausrüstungsteil wird nicht gegeben. Folglich müssen die in dieser Werkstoffnorm angegebenen technischen Parameter im Hinblick auf die konstruktiven Anforderungen dieses bestimmten Ausrüstungsteils ermittelt werden, um damit zu verifizieren, dass den ESR der Richtlinie 2014/68/EU entsprochen wird. Die Reihe EN 10222-1 bis -5 ist so aufgeteilt, dass die Daten von verschiedenen Werkstoffen in dem entsprechenden Teil zu finden sind. Die Vermutung der Konformität mit den grundlegenden Sicherheitsanforderungen der EU-Richtlinie 2014/68/EU hängt sowohl vom Text in Teil 1 als auch von den Daten in den Teilen 2, 3, 4 oder 5 ab.
Allgemeine Angaben zu technischen Lieferbedingungen sind in EN 10021 enthalten.

Pièces forgées en acier pour appareils à pression - Partie 4 : Aciers soudables à grains fins avec limite d'élasticité élevée

La présente partie de la norme européenne spécifie les conditions techniques de livraison des pièces forgées en aciers soudables à grains fin, avec limite d’élasticité élevée, pour appareils à pression.
NOTE   Dès lors que la présente Norme européenne est citée dans le Journal Officiel de l’Union européenne (JOUE) en lien avec la Directive 2014/68/UE, la présomption de conformité avec les exigences essentielles de sécurité de la Directive 2014/68/ UE se limite aux données techniques relatives aux matériaux spécifiés dans la présente Norme européenne et ne suppose pas l’adéquation des matériaux avec un appareil en particulier. Par conséquent, il doit être procédé à l’évaluation des données techniques spécifiées dans la présente norme de matériaux par rapport aux exigences relatives à la conception de cet équipement spécifique, afin de vérifier que les exigences essentielles de sécurité de la Directive 2014/68/UE sont satisfaites. La série de normes 10222-1 à 10222-5 est structurée de telle façon que les données relatives aux différents matériaux sont dans la partie dédiée à ce matériau. La présomption de conformité aux exigences essentielles de sécurité de la Directive 2014/68/UE dépend à la fois du texte de la partie 1 et des données contenues dans les parties 2,3,4 ou 5.
Les informations générales sur les conditions techniques de livraison sont données dans l'EN 10021.

Jekleni izkovki za tlačne posode - 4. del: Variva drobnozrnata jekla z veliko dogovorno napetostjo tečenja - Dopolnilo A1

General Information

• Status: Not Published
• Public Enquiry End Date: 30-Oct-2019
• ICS: 77.140.30 - Steels for pressure purposes
• ICS: 77.140.85 - Iron and steel forgings
• Technical Committee: IFEK - Ferrous metals
• Current Stage: 98 - Abandoned project (Adopted Project)
• Start Date: 17-Jun-2021
• Due Date: 22-Jun-2021
• Completion Date: 17-Jun-2021
• Directive: 2014/68/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
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: EN 10222-4:2017/FprA1 - Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength

Relations

• Consolidated By: SIST EN 10222-4:2017+A1:2021 - Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength
• Effective Date: 21-Apr-2021
• Amends: SIST EN 10222-4:2017 - Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength
• Effective Date: 25-Apr-2018

Overview

SIST EN 10222-4:2017/kFprA1:2021 is a European Standard published by CEN that specifies the technical delivery conditions for steel forgings used in pressure equipment. This part of the EN 10222 series focuses on weldable fine grain steels with high proof strength. Its primary aim is to ensure consistent quality and performance of steel forgings utilized in pressurized components, supporting both safety and durability.

The standard applies to non-alloy quality steels, non-alloy special steels, and alloy special steels designed for pressure purposes, including grades such as P285NH, P355NL1, P355QL1, P420QH, and P460QL2 among others. It outlines the chemical composition, mechanical properties, heat treatment, and impact energy requirements specific to these materials.

The standard also emphasizes compliance with EU Directive 2014/68/EU, covering the Essential Safety Requirements (ESRs) for pressure equipment, ensuring materials meet safety benchmarks while noting that adequacy for specific equipment must be independently assessed.

Key Topics

• Steel Grades and Classification
  Covers a comprehensive range of weldable fine grain steels, categorized as non-alloy quality, non-alloy special, and alloy special steels. Specific grades with corresponding steel numbers are detailed with their chemical and mechanical properties.

• Chemical Composition Requirements
  Defines maximum content limits for carbon, silicon, phosphorus, nitrogen, chromium, copper, molybdenum, niobium, nickel, vanadium, sulfur, manganese, and aluminum. Proper control of these elements ensures optimal weldability and mechanical strength.

• Heat Treatment and Delivery Conditions
  Includes normalized (+N), quenched and tempered (+QT) heat treatment procedures, specifying temperatures for austenitizing and tempering. Delivery conditions affect mechanical properties like yield strength and toughness.

• Mechanical Properties
  Specifies minimum yield strength, tensile strength, and elongation values at room temperature. The standard also includes thickness-dependent requirements to adapt performance to component dimensions.

• Impact Energy
  Details minimum impact energy values (KV2) across several temperatures and directions (longitudinal and transversal), ensuring toughness and resistance to brittle fracture, crucial for pressure applications.

• Proof Strength at Elevated Temperatures
  Defines minimum 0.2% proof strength (Rp0.2) at elevated temperatures for various thicknesses, which is vital for pressure equipment operating under different thermal conditions.

• Options and Special Provisions
  Allows for specific agreements on grades and conditions, such as delivery of grade P460N in normalized state and related mechanical properties.

Applications

SIST EN 10222-4:2017/kFprA1:2021 is essential for manufacturers, suppliers, and end-users involved in the production or use of steel forgings for pressure vessels, boilers, and piping systems. Its applications include:

• Pressure Vessel Manufacture
  Ensures steel forgings meet stringent mechanical and chemical requirements for robust, safe pressure containment.

• Pipeline and Heat Exchanger Components
  Supports the fabrication of components exposed to high pressure and temperature, relying on the precise control over material properties for durability and weldability.

• Power Generation Industry
  Steel forgings compliant with this standard are suitable for critical parts in thermal and nuclear power plants where high proof strength and fine grain structure are mandatory.

• Chemical and Petrochemical Industry
  Enables the use of materials that can withstand corrosive environments and mechanical stresses in pressure equipment.

Related Standards

• EN 10222 Series (Parts 1 to 5)
  This series collectively addresses steel forgings for pressure purposes, with each part dedicated to different steel types and properties.

• EN 10021
  Provides general information on technical delivery conditions, supporting the implementation of EN 10222-4.

• Directive 2014/68/EU
  Governs the safety requirements for pressure equipment in the EU, with technical compliance linked to standards including EN 10222-4.

• EN 10222-1:2017
  Offers foundational rules for steel forgings, such as thickness equivalency, to complement the specific material data in Part 4.

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Keywords: EN 10222-4, steel forgings for pressure purposes, weldable fine grain steels, high proof strength, pressure vessel steel, heat treatment, mechanical properties, chemical composition, impact energy, pressure equipment materials, European steel standards.

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 10222-4:2017/oprA1:2019
01-oktober-2019
Jekleni izkovki za tlačne posode - 4. del: Variva drobnozrnata jekla z veliko
dogovorno napetostjo tečenja - Dopolnilo A1
Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof
strength
Schmiedestücke aus Stahl für Druckbehälter - Teil 4: Schweißgeeignete
Feinkornbausstähle mit hoher Dehngrenze
Pièces forgées en acier pour appareils à pression - Partie 4 : Aciers soudables à grains
fins avec limite d'élasticité élevée
Ta slovenski standard je istoveten z: EN 10222-4:2017/prA1
ICS:
77.140.30 Jekla za uporabo pod tlakom Steels for pressure purposes
77.140.85 Železni in jekleni kovani Iron and steel forgings
izdelki
SIST EN 10222-4:2017/oprA1:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 10222-4:2017/oprA1:2019

SIST EN 10222-4:2017/oprA1:2019

DRAFT
EUROPEAN STANDARD
EN 10222-4:2017
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
August 2019
ICS 77.140.30; 77.140.85
English Version
Steel forgings for pressure purposes - Part 4: Weldable fine
grain steels with high proof strength
Pièces forgées en acier pour appareils à pression - Schmiedestücke aus Stahl für Druckbehälter - Teil 4:
Partie 4 : Aciers soudables à grains fins avec limite Schweißgeeignete Feinkornbausstähle mit hoher
d'élasticité élevée Dehngrenze
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC
459/SC 11.
This draft amendment A1, if approved, will modify the European Standard EN 10222-4:2017. If this draft becomes an
amendment, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
inclusion of this amendment into the relevant national standard without any alteration.

This draft amendment was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10222-4:2017/prA1:2019 E
worldwide for CEN national Members.

SIST EN 10222-4:2017/oprA1:2019
EN 10222-4:2017/prA1:2019 (E)
Contents Page
European foreword . 3
1 Modification to Table 1 . 4
2 Modification to Table 2 . 4
3 Modification to Table 4 . 6
4 Modification to Table 5 . 7
5 Modification to 4.1, Classification . 7
6 Modification to 5.2, Options . 7
7 Modification to 6.2, Delivery condition. 8
8 Modification to Table 6 . 8
9 Modification to Annex A . 8

SIST EN 10222-4:2017/oprA1:2019
EN 10222-4:2017/prA1:2019 (E)
European foreword
This document (EN 10222-4:2017/prA1:2019) has been prepared by Technical Committee
CEN/TC 459/SC 11 “Steels castings and forgings”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 10222-4:2017.

SIST EN 10222-4:2017/oprA1:2019
EN 10222-4:2017/prA1:2019 (E)
1 Modification to Table 1
Replace Table 1 with the following: “
Table 1 — Heat treatment
Austenitizing
Steel grade Tempering
Heat
or normalizing
treatment
Steel Temperature Temperature
a
b
Steel number
Cooling in
name °C °C
P285NH 1.0477 +N 880 to 960 a –
P285QH 1.0478 +QT 860 to 940 o, w 600 to 700
P355NH 1.0565 +N 880 to 960 a –
c 1.0566 +N 880 to 960 a –
P355NL1
c 1.1106 +N 880 to 960 a –
P355NL2
P355QH1 1.0571 +QT 860 to 940 o, w 600 to 700
P355QL1 1.8868 +QT 860 to 940 o, w 600 to 700
P355QL2 1.8869 +QT 860 to 940 o, w 600 to 700
c 1.8932 +N 880 to 960 a –
P420NH
P420QH 1.8936 +QT 860 to 940 o, w 600 to 700
P460QH 1.8871 +QT 860 to 940 o, w 600 to 700
P460QL1 1.8872 +QT 860 to 940 o, w 600 to 700
P460 QL2 1.8864 +QT 860 to 940 o, w 600 to 700
a
+N = normalized, +QT = quenched and tempered.
b
a = air, o = oil, w = water or water based medium.
c
Limited to teq < 40 mm (see EN 10222–1:2017, Table A.1).
“.
2 Modification to Table 2
Replace Table 2 with the following: “
SIST EN 10222-4:2017/oprA1:2019
EN 10222-4:2017/prA1:2019 (E)
Table 2 — Chemical composition (cast analysis)
Steel designation a Carbon
% by mass
equivalent
Nb +
b
value
f
Steel Steel C Si P N Cr Cu Mo Nb Ni V
S
Mn Al V
total
% by mass
name number max. max. max. max. max. max. max. max. max. max.
max.
max.
P285NH 1.0477 0,80
c
0,18 0,40 to 0,025 0,010 0,020 0,30 0,20 0,08 0,03 0,30 0,05 0,05 0,41
≥ 0,020
P285QH 1.0478
1,50
P355NH 1.0565 0,010
1,10
0,025
c d d d
P355NL1 1.0566 0,18 0,50 to 0,015 0,05 0,50 0,10 0,12
≥ 0,020 0,30 0,30 0,08
0,008
1,70
P355NL2 1.1106 0,020
0,47
P355QH1 1.0571 0,025 0,010
0,90
c e e
P355QL1 1.8868 0,18 0,40 to 0,015 0,30 0,30 0,25 0,50 0,12
≥ 0,020 0,05 0,10
0,020 0,008
1,50
P355QL2 1.8869
P420NH 1.8932 1,10 0,025 0,010 0,20 0,22
c
0,20 0,60 to 0,020 0,30 0,20 0,10 0,05 1,00 0,51
≥ 0,020
P420QH 1.8936
e
0,020 0,008 0,15
1,70 -
P460QH 1.8871 0,025 0,010
1,10
c e
P460QL1 1.8872 0,18 0,50 to 0,015 0,50 0,30 0,50 0,05 1,00 0,15 0,51
≥ 0,02
...