EN ISO 21028-2:2018

Cryogenic vessels - Toughness requirements for materials at cryogenic temperature - Part 2: Temperatures between -80 degrees C and -20 degrees C (ISO 21028-2:2018)

ISO 21028-2:2018 specifies the toughness requirements of metallic materials for use at temperatures between −20 °C and −80 °C to ensure their suitability for cryogenic vessels. This document is applicable to fine-grain and low-alloyed steels with specified yield strength ≤460 N/mm2, aluminium and aluminium alloys, copper and copper alloys and austenitic stainless steels.
NOTE       For steel materials listed in EN 13445‑2 or EN 13480‑2 or for steel materials and weldings complying with the same fundamental safety requirements, the requirements for prevention of brittle fracture at low temperatures according to EN 13445‑2:2014, Annex B, method 2, or EN 13480‑2:2012, Annex B, method 2 can be applied.

Kryo-Behälter - Zähigkeitsanforderungen an Werkstoffe bei kryogenen Temperaturen - Teil 2: Temperaturen zwischen -80 °C und -20 °C (ISO 21028-2.2:2018)

Dieser Teil der ISO 21028 legt die Anforderungen an die Zähigkeit von metallischen Werkstoffen für die Verwendung bei Temperaturen zwischen − 20 °C und − 80 °C fest, um deren Eignung für den Einsatz für Kryo-Behälter sicherzustellen. Diese Norm gilt für Feinkornstähle und niedrig legierte Stähle mit einer festgelegten Streckgrenze ≤ 460 N/mm2, Aluminium und Aluminiumlegierungen, Kupfer und Kupferlegierungen sowie austenitische nichtrostende Stähle.

Récipients cryogéniques - Exigences de ténacité pour les matériaux à température cryogénique - Partie 2: Températures comprises entre -80 degrés C et -20 degrés C (ISO 21028-2:2018)

L'ISO 21028-2:2018 spécifie les exigences de ténacité des matériaux métalliques utilisables à une température comprise entre −20 °C et −80 °C pour assurer leur aptitude à l'emploi pour les récipients cryogéniques. Il est applicable aux aciers à grains fins et aux aciers faiblement alliés avec une limite d'élasticité spécifiée ≤ 460 N/mm2, à l'aluminium et aux alliages d'aluminium, au cuivre et aux alliages de cuivre et aux aciers austénitiques inoxydables.
NOTE       Pour les matériaux en acier répertoriés dans l'EN 13445‑2 ou l'EN 13480‑2 ou pour les matériaux en acier et les soudures conformes aux mêmes exigences fondamentales de sécurité, les exigences relatives à la prévention de la rupture fragile à basse température, conformément à l'EN 13445‑2:2014, Annexe B, méthode 2, ou à l'EN 13480‑2:2012, Annexe B, méthode 2 peuvent être appliquées.

Kriogene posode - Zahteve za žilavost materialov pri kriogenih temperaturah - 2. del: Temperature med –80 °C in –20 °C (ISO 21028-2:2018)

Ta evropski standard določa zahteve za žilavost kovinskih materialov, ki se uporabljajo pri temperaturah od –80 do –20 °C za zagotovitev njihove ustreznosti pri uporabi za kriogene posode. Ta standard zajema drobnozrnata in nizko legirana jekla s specifično natezno trdnostjo <= 460 N/mm², aluminij in aluminijeve zlitine, baker in bakrove zlitine ter avstenitna nerjavna jekla.

General Information

• Status: Published
• Publication Date: 17-Apr-2018
• Withdrawal Date: 30-Oct-2018
• ICS: 23.020.40 - Cryogenic vessels
• Technical Committee: CEN/TC 268 - Cryogenic vessels
• Drafting Committee: CEN/TC 268/WG 2 - Compatibility, insulation, accessories
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 18-Apr-2018
• Completion Date: 18-Apr-2018
• Directive: 2008/68/EC - Directve 2008/68/EC of the European Parliament and of the council of 24 September 2008 on the inland transport of the dangerous goods
• 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
• Directive: 96/86/EC - Transport of dangerous goods by road (94/55/EC Dir. amendment)
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Mandate: M/086 - Mandate to CEN for standardization in the field of transport of dangerous goods
• Ref Project: SIST EN ISO 21028-2:2018 - Cryogenic vessels - Toughness requirements for materials at cryogenic temperature - Part 2: Temperatures between -80 degrees C and -20 degrees C (ISO 21028-2:2018)

Relations

• Replaces: EN 1252-2:2001 - Cryogenic vessels - Materials - Part 2: Toughness requirements for temperatures between -80°C and -20°C
• Effective Date: 25-Apr-2018

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2018
1DGRPHãþD
SIST EN 1252-2:2002
Kriogene posode - Zahteve za žilavost materialov pri kriogenih temperaturah - 2.
del: Temperature med –80 °C in –20 °C (ISO 21028-2:2018)
Cryogenic vessels - Toughness requirements for materials at cryogenic temperature -
Part 2: Temperatures between -80 degrees C and -20 degrees C (ISO 21028-2:2018)
Kryo-Behälter - Zähigkeitsanforderungen an Werkstoffe bei kryogenen Temperaturen -
Teil 2: Temperaturen zwischen -80 °C und -20 °C (ISO 21028-2.2:2018)
Récipients cryogéniques - Exigences de ténacité pour les matériaux à température
cryogénique - Partie 2: Températures comprises entre -80 degrés C et -20 degrés C
(ISO 21028-2:2018)
Ta slovenski standard je istoveten z: EN ISO 21028-2:2018
ICS:
23.020.40 Proti mrazu odporne posode Cryogenic vessels
(kriogenske posode)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 21028-2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2018
EUROPÄISCHE NORM
ICS 23.020.40 Supersedes EN 1252-2:2001
English Version
Cryogenic vessels - Toughness requirements for materials
at cryogenic temperature - Part 2: Temperatures between
-80 degrees C and -20 degrees C (ISO 21028-2:2018)
Récipients cryogéniques - Exigences de ténacité pour Kryo-Behälter - Zähigkeitsanforderungen an
les matériaux à température cryogénique - Partie 2: Werkstoffe bei kryogenen Temperaturen - Teil 2:
Températures comprises entre -80 degrés C et -20 Temperaturen zwischen -80 °C und -20 °C (ISO 21028-
degrés C (ISO 21028-2:2018) 2.2:2018)
This European Standard was approved by CEN on 12 January 2018.

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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21028-2:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of Directive 2014/68/EU of the European Parliament and of the
Council of 15 May 2014 on the harmonization of the laws of the Member States
relating to the making available on the market of pressure equipment . 4

European foreword
This document (EN ISO 21028-2:2018) has been prepared by Technical Committee ISO/TC 220
"Cryogenic vessels" in collaboration with Technical Committee CEN/TC 268 “Cryogenic vessels and
specific hydrogen technologies applications”, the secretariat of which is held by AFNOR.
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 October 2018, and conflicting national standards shall
be withdrawn at the latest by October 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1252-2:2001.
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 EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
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.
Endorsement notice
The text of ISO 21028-2:2018 has been approved by CEN as EN ISO 21028-2:2018 without any
modification.
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of Directive 2014/68/EU of the European Parliament and of
the Council of 15 May 2014 on the harmonization of the laws of the Member
States relating to the making available on the market of pressure
equipment
This European Standard has been prepared under a Commission’s standardization request, M/071
Pressure Equipment, to provide one voluntary means of conforming to Essential Requirements of the
New Approach Directive 2014/68/EU “Pressure Equipment Directive” of the European Parliament and
of the Council of 15 May 2014.
Once this standard is cited in the Official Journal of the European Union under that Directive compliance
with the normative clauses of this standard given in Table ZA.1 confers, within the limits of the scope of
this standard, a presumption of conformity with the corresponding essential requirements of that
Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Directive 2014/68/EU of
the European Parliament and of the Council of 15 May 2014
Essential Requirements of Clause(s)/sub-clause(s) of this
Remarks/Notes
Directive 2014/68/EU EN
Annex I § 2.2.3 b) All clauses Impact strength
Annex I § 7.5 All clauses Material characteristics

WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
INTERNATIONAL ISO
STANDARD 21028-2
Second edition
2018-03
Cryogenic vessels — Toughness
requirements for materials at
cryogenic temperature —
Part 2:
Temperatures between -80 degrees C
and -20 degrees C
Récipients cryogéniques — Exigences de ténacité pour les matériaux
à température cryogénique —
Partie 2: Températures comprises entre -80 degrés C et -20 degrés C
Reference number
ISO 21028-2:2018(E)
©
ISO 2018
ISO 21028-2:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
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Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 21028-2:2018(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Requirements for steels with specified yield strength ≤460 N/mm .3
5.1 General . 3
5.2 Temperature adjustments . 4
5.3 Procedure for base material <10 mm thick . . 4
6 General test requirements . 5
6.1 General . 5
6.2 Sub-sized specimens . 5
6.3 Sub-sized specimens for components from which it is impossible to extract
specimens of section size equal to reference thickness . 5
7 Welds .6
8 Requirements for aluminium and aluminium alloys, copper and copper alloys and
austenitic stainless steels .6
Annex A (informative) Case proposal — Technical justification for temperature
adjustment term .19
Annex B (informative) Example of calculation of the lowest temperature authorized
during operation .22
Bibliography .23
ISO 21028-2:2018(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade
...