SIST EN ISO 9809-2:2019

Gas cylinders - Design, construction and testing of refillable seamless steel gas cylinders and tubes - Part 2: Quenched and tempered steel cylinders and tubes with tensile strength greater than or equal to 1 100 MPa (ISO 9809-2:2019)

This document specifies minimum requirements for the material, design, construction and workmanship, manufacturing processes, examination and testing at time of manufacture for refillable seamless steel gas cylinders and tubes with water capacities up to and including 450 l. it is applicable to cylinders and tubes for compressed, liquefied and dissolved gases and for quenched and tempered steel cylinders and tubes with an actual tensile strength Rma ≥ 1 100 MPa. It is not applicable to cylinders and tubes with Rma, max > 1 300 MPa for diameters >140 mm and guaranteed wall thicknesses a' ≥ 12 mm and for cylinders and tubes with Rma, max > 1 400 MPa for diameters ≤140 mm and guaranteed wall thicknesses a' ≥ 6 mm because, beyond these limits, additional requirements can apply.

Gasflaschen - Gestaltung, Konstruktion und Prüfung von wiederbefüllbaren nahtlosen Gasflaschen aus Stahl - Teil 2: Flaschen aus vergütetem Stahl mit einer Zugfestigkeit größer als oder gleich 1 100 MPa (ISO 9809-2:2019)

Dieses Dokument legt Mindestanforderungen an Werkstoff, Auslegung, Bau und Ausführung, Herstellungs-verfahren, Herstellungsuntersuchungen und -prüfungen für wiederbefüllbare nahtlose Gasflaschen aus Stahl mit Fassungsräumen bis einschließlich 450 l fest.
Es gilt für Flaschen für verdichtete, verflüssigte und gelöste Gase sowie für Flaschen aus vergütetem Stahl mit einer tatsächlichen Zugfestigkeit Rma ≥ 1 100 MPa.
Es gilt nicht für Flaschen mit Rma, max > 1 300 MPa bei Durchmessern > 140 mm und garantierten Wanddicken a′ ≥ 12 mm und für Flaschen mit Rma, max > 1 400 MPa bei Durchmessern ≤ 140 mm und garantierten Wanddicken a′ ≥ 6 mm, da oberhalb dieser Grenzen zusätzliche Anforderungen gelten können.

Bouteilles à gaz - Conception, construction et essais des bouteilles à gaz et des tubes rechargeables en acier sans soudure - Partie 2: Bouteilles et tubes en acier trempé et revenu ayant une résistance à la traction supérieure ou égale à 1 100 MPa (ISO 9809-2:2019)

Le présent document spécifie les exigences minimales concernant le matériau, la conception, la construction et la mise en œuvre, les procédés de fabrication, les examens et les essais au moment de la fabrication des bouteilles à gaz et des tubes rechargeables en acier sans soudure d'une contenance en eau inférieure ou égale à 450 l.
Il s'applique aux bouteilles et tubes pour les gaz comprimés, liquéfiés et dissous, ainsi qu'aux bouteilles et tubes en acier trempé et revenu ayant une résistance à la traction réelle Rma ≥ 1 100 MPa.
Il ne s'applique pas aux bouteilles et tubes ayant Rma, max > 1 300 MPa pour les diamètres > 140 mm et les épaisseurs garanties de paroi a′ ≥ 12 mm, ni aux bouteilles et tubes ayant Rma, max > 1 400 MPa pour les diamètres ≤ 140 mm et les épaisseurs garanties de paroi a′ ≥ 6 mm car, au-delà de ces limites, des exigences supplémentaires peuvent s'appliquer.

Plinske jeklenke - Konstruiranje, izdelava in preskušanje ponovno polnljivih plinskih jeklenk in velikih jeklenk iz celega iz jekla - 2. del: Jeklenke in velike jeklenke iz jekel za poboljšanje z natezno trdnostjo, enako ali večjo od 1100 MPa (ISO 9809-2:2019)

Ta dokument določa minimalne zahteve za material, konstruiranje, izdelavo in izvedbo, postopke izdelave, pregled ter preskušanje v času proizvodnje za ponovno polnljive plinske jeklenke in velike jeklenke iz celega iz jekla s prostornino vode do vključno 450 l. Uporablja se za jeklenke in velike jeklenke za stisnjene, utekočinjene in raztopljene pline ter za jeklenke in velike jeklenke iz jekel za poboljšanje z dejansko natezno trdnostjo Rma, enako ali večjo od 1100 MPa. Ne uporablja se za jeklenke in velike jeklenke z največjo natezno trdnostjo Rma, večjo od 1300 MPa, s premerom več kot 140 mm in zajamčeno debelino sten a’ ≥ 12 mm ter za jeklenke in velike jeklenke z največjo natezno trdnostjo Rma, večjo od 1400 MPa, s premerom največ 140 mm in zajamčeno debelino sten a’ ≥ 6 mm, saj lahko zunaj teh omejitev veljajo dodatne zahteve.

General Information

• Status: Published
• Public Enquiry End Date: 24-Jul-2018
• Publication Date: 07-Nov-2019
• ICS: 23.020.35 - Gas cylinders
• Technical Committee: TLP - Pressure vessels
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 03-Oct-2019
• Due Date: 08-Dec-2019
• Completion Date: 08-Nov-2019
• 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
• Mandate: M/086 - Mandate to CEN for standardization in the field of transport of dangerous goods
• Ref Project: EN ISO 9809-2:2019 - Gas cylinders - Design, construction and testing of refillable seamless steel gas cylinders and tubes - Part 2: Quenched and tempered steel cylinders and tubes with tensile strength greater than or equal to 1 100 MPa (ISO 9809-2:2019)

Relations

• Replaces: SIST EN ISO 9809-2:2010 - Gas cylinders - Refillable seamless steel gas cylinders - Design, construction and testing - Part 2: Quenched and tempered steel cylinders with tensile strength greater than or equal to 1 100 MPa (ISO 9809-2:2010)
• Effective Date: 01-Dec-2019

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 9809-2:2019
01-december-2019
Nadomešča:
SIST EN ISO 9809-2:2010
Plinske jeklenke - Konstruiranje, izdelava in preskušanje ponovno polnljivih
plinskih jeklenk in velikih jeklenk iz celega iz jekla - 2. del: Jeklenke in velike
jeklenke iz jekel za poboljšanje z natezno trdnostjo, enako ali večjo od 1100 MPa
(ISO 9809-2:2019)
Gas cylinders - Design, construction and testing of refillable seamless steel gas cylinders
and tubes - Part 2: Quenched and tempered steel cylinders and tubes with tensile
strength greater than or equal to 1 100 MPa (ISO 9809-2:2019)
Gasflaschen - Gestaltung, Konstruktion und Prüfung von wiederbefüllbaren nahtlosen
Gasflaschen aus Stahl - Teil 2: Flaschen aus vergütetem Stahl mit einer Zugfestigkeit
größer als oder gleich 1 100 MPa (ISO 9809-2:2019)
Bouteilles à gaz - Conception, construction et essais des bouteilles à gaz et des tubes
rechargeables en acier sans soudure - Partie 2: Bouteilles et tubes en acier trempé et
revenu ayant une résistance à la traction supérieure ou égale à 1 100 MPa (ISO 9809-
2:2019)
Ta slovenski standard je istoveten z: EN ISO 9809-2:2019
ICS:
23.020.35 Plinske jeklenke Gas cylinders
SIST EN ISO 9809-2:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 9809-2:2019


EN ISO 9809-2
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2019
EUROPÄISCHE NORM
ICS 23.020.35 Supersedes EN ISO 9809-2:2010
English Version

Gas cylinders - Design, construction and testing of
refillable seamless steel gas cylinders and tubes - Part 2:
Quenched and tempered steel cylinders and tubes with
tensile strength greater than or equal to 1 100 MPa (ISO
9809-2:2019)
Bouteilles à gaz - Conception, construction et essais des Gasflaschen - Auslegung, Herstellung und Prüfung von
bouteilles à gaz et des tubes rechargeables en acier wiederbefüllbaren nahtlosen Gasflaschen aus Stahl -
sans soudure - Partie 2: Bouteilles et tubes en acier Teil 2: Flaschen aus vergütetem Stahl mit einer
trempé et revenu ayant une résistance à la traction Zugfestigkeit größer als oder gleich 1 100 MPa (ISO
supérieure ou égale à 1 100 MPa (ISO 9809-2:2019) 9809-2:2019)
This European Standard was approved by CEN on 25 July 2019.

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, 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.





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 ISO 9809-2:2019 E
worldwide for CEN national Members.

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SIST EN ISO 9809-2:2019
EN ISO 9809-2:2019 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 9809-2:2019
EN ISO 9809-2:2019 (E)
European foreword
This document (EN ISO 9809-2:2019) has been prepared by Technical Committee ISO/TC 58 "Gas
cylinders" in collaboration with Technical Committee CEN/TC 23 “Transportable gas cylinders” the
secretariat of which is held by BSI.
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 April 2020, and conflicting national standards shall be
withdrawn at the latest by April 2020.
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 ISO 9809-2:2010.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
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, 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 the
United Kingdom.
Endorsement notice
The text of ISO 9809-2:2019 has been approved by CEN as EN ISO 9809-2:2019 without any
modification.


3

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SIST EN ISO 9809-2:2019

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SIST EN ISO 9809-2:2019
INTERNATIONAL ISO
STANDARD 9809-2
Third edition
2019-08
Gas cylinders — Design, construction
and testing of refillable seamless steel
gas cylinders and tubes —
Part 2:
Quenched and tempered steel
cylinders and tubes with tensile
strength greater than or equal to
1 100 MPa
Bouteilles à gaz — Conception, construction et essais des bouteilles à
gaz et des tubes rechargeables en acier sans soudure —
Partie 2: Bouteilles et tubes en acier trempé et revenu ayant une
résistance à la traction supérieure ou égale à 1 100 MPa
Reference number
ISO 9809-2:2019(E)
©
ISO 2019

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SIST EN ISO 9809-2:2019
ISO 9809-2:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

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SIST EN ISO 9809-2:2019
ISO 9809-2:2019(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 3
5 Inspection and testing . 4
6 Materials . 4
6.1 General requirements . 4
6.2 Controls on chemical composition . 5
6.3 Heat treatment . 6
6.4 Failure to meet test requirements . 6
7 Design . 7
7.1 General requirements . 7
7.2 Limitation on tensile strength . 7
7.3 Design of cylindrical shell thickness . 7
7.4 Design of convex ends (heads and bases). 8
7.5 Design of concave base ends . 8
7.6 Neck design .10
7.7 Foot rings .11
7.8 Neck rings .11
7.9 Design drawing .11
8 Construction and workmanship .11
8.1 General .11
8.2 Wall thickness .11
8.3 Surface imperfections .12
8.4 Ultrasonic examination .12
8.5 Out-of-roundness .12
8.6 Mean diameter .12
8.7 Straightness .12
8.8 Verticality and stability .12
8.9 Neck threads .13
9 Type approval procedure .13
9.1 General requirements .13
9.2 Prototype tests .14
9.2.1 General requirements .14
9.2.2 Verification of hardness/tensile correlation .15
9.2.3 Pressure cycling test .16
9.2.4 Flawed cylinder burst test .17
9.2.5 Flawed cylinder cycle test .19
9.2.6 Base check .20
9.2.7 Bend test and flattening test .20
9.2.8 Torque test for taper thread only .21
9.2.9 Shear stress calculation for parallel threads .21
9.3 Type approval certificate.22
10 Batch tests .22
10.1 General requirements .22
10.2 Tensile test .24
10.3 Impact test .25
10.4 Hydraulic bursting test .27
© ISO 2019 – All rights reserved iii

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SIST EN ISO 9809-2:2019
ISO 9809-2:2019(E)

10.4.1 Test installation . .27
10.4.2 Test conditions.28
10.4.3 Interpretation of test results .29
11 Tests/examinations on every cylinder .30
11.1 General .30
11.2 Hydraulic test .30
11.2.1 Proof pressure test .30
11.2.2 Volumetric expansion test .30
11.3 Hardness test .30
11.4 Leak test .31
11.5 Capacity check .31
12 Certification .31
13 Marking .31
Annex A (normative) Description and evaluation of manufacturing imperfections in
seamless gas cylinders .32
Annex B (normative) Ultrasonic examination .45
Annex C (informative) Example of type approval certificate .50
Annex D (informative) Example of acceptance certificate .51
Annex E (informative) Bend stress calculation.54
Annex F (informative) An example of shear strength calculation for parallel threads .55
Bibliography .57
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SIST EN ISO 9809-2:2019
ISO 9809-2:2019(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 name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 3,
Cylinder design.
This third edition cancels and replaces the second edition (ISO 9809-2:2010), which has been technically
revised. The changes compared to the previous edition are as follows:
— water capacity extended from below 0,5 l and up to and including 450 l;
— batch size for tubes now introduced;
— bend test retained only for prototype tests;
— test requirements for check analysis (tolerances modified);
— new test requirements for threads introduced including an informative Annex F;
— original European Annexes now incorporated into the body of this document;
— Annex A "Manufacturing imperfections" now aligned with ISO/TR 16115.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
© ISO 2019 – All rights reserved v

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SIST EN ISO 9809-2:2019
ISO 9809-2:2019(E)

Introduction
This document provides a specification for the design, manufacture, inspection and testing of a
seamless steel cylinder and tube. The objective is to balance design and economic efficiency against
international acceptance and universal utility.
ISO 9809 (all parts) aims to eliminate existing concern; about climate, duplicate inspections and
restrictions because of a lack of definitive International Standards.
This document is intended to be used under a variety of regulatory regimes, and has been written so
[11]
that it is suitable to be referenced in the UN Model Regulations .
vi © ISO 2019 – All rights reserved

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SIST EN ISO 9809-2:2019
INTERNATIONAL STANDARD ISO 9809-2:2019(E)
Gas cylinders — Design, construction and testing of
refillable seamless steel gas cylinders and tubes —
Part 2:
Quenched and tempered steel cylinders and tubes with
tensile strength greater than or equal to 1 100 MPa
1 Scope
This document specifies minimum requirements for the material, design, construction and
workmanship, manufacturing processes, examination and testing at time of manufacture for refillable
seamless steel gas cylinders and tubes with water capacities up to and including 450 l.
it is applicable to cylinders and tubes for compressed, liquefied and dissolved gases and for quenched
and tempered steel cylinders and tubes with an actual tensile strength R ≥ 1 100 MPa.
ma
It is not applicable to cylinders and tubes with R > 1 300 MPa for diameters >140 mm and
ma, max
guaranteed wall thicknesses a′ ≥ 12 mm and for cylinders and tubes with > 1 400 MPa for
Rma, max
diameters ≤140 mm and guaranteed wall thicknesses a′ ≥ 6 mm because, beyond these limits, additional
requirements can apply.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method
ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1: Test method
ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
ISO 10286, Gas cylinders — Terminology
ISO 11114-1, Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 1:
Metallic materials
ISO 11114-4, Transportable gas cylinders — Compatibility of cylinder and valve materials with gas
contents — Part 4: Test methods for selecting steels resistant to hydrogen embrittlement
ISO 13341, Gas cylinders — Fitting of valves to gas cylinders
ISO 13769, Gas cylinders — Stamp marking
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10286 and the following apply.
© ISO 2019 – All rights reserved 1

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SIST EN ISO 9809-2:2019
ISO 9809-2:2019(E)

ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
batch
quantity of up to 200 for cylinders and up to 50 for tubes, plus cylinders/tubes for destructive testing
of the same nominal diameter, thickness, length and design made successively on the same equipment,
from the same cast of steel and subjected to the same heat treatment for the same duration of time
Note 1 to entry: In this document where not specifically mentioned for “cylinder/tube” only the term “cylinder”
will be used.
3.2
burst pressure
p
b
highest pressure reached in a cylinder during a burst test
3.3
design stress factor
F
ratio of equivalent wall stress at test pressure, p , to guaranteed minimum yield strength, R
h eg
3.4
quenching
hardening heat treatment in which a cylinder, which has been heated to a uniform temperature above
the upper critical point, Ac , of the steel, is cooled rapidly in a suitable medium
3
3.5
reject
cylinder that has been set aside (Level 2 or Level 3) and not allowed to enter into service
3.6
rendered unserviceable
cylinder that has been treated in such a way as to render it impossible for it to enter into service
Note 1 to entry: Examples for acceptable methods to render cylinders unserviceable can be found in ISO 18119.
Any actions on cylinders rendered unserviceable are outside the scope of this document.
3.7
repair
action to return a rejected cylinder to a Level 1 condition
3.8
tempering
toughening heat treatment which follows quenching, in which the cylinder is heated to a uniform
temperature below the lower critical point, Ac , of the steel
1
3.9
test pressure
p
h
required pressure applied during a pressure test
Note 1 to entry: Test pressure is used for cylinder wall thickness calculation.
3.10
working pressure
settled pressure of a compressed gas at a uniform reference temperature of 15 °C in a full gas cylinder
2 © ISO 2019 – All rights reserved

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SIST EN ISO 9809-2:2019
ISO 9809-2:2019(E)

3.11
yield strength
stress value corresponding to the upper yield strength, R , or for steels which do not exhibit a defined
eH
yield, the 0,2 %
...