EN ISO 5178:2019

SLOVENSKI STANDARD
01-september-2019
Nadomešča:
SIST EN ISO 5178:2012
Porušitveni preskusi zvarov na kovinskih materialih - Vzdolžni natezni preskus
vara na talilnih zvarnih spojih (ISO 5178:2019)
Destructive tests on welds in metallic materials - Longitudinal tensile test on weld metal
in fusion welded joints (ISO 5178:2019)
Zerstörende Prüfung von Schweißverbindungen an metallischen Werkstoffen -
Längszugversuch an Schweißgut in Schmelzschweißverbindungen (ISO 5178:2019)
Essais destructifs des soudures sur matériaux métalliques - Essai de traction
longitudinale du métal fondu des assemblages soudés par fusion (ISO 5178:2019))
Ta slovenski standard je istoveten z: EN ISO 5178:2019
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 5178
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2019
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 5178:2011
English Version
Destructive tests on welds in metallic materials -
Longitudinal tensile test on weld metal in fusion welded
joints (ISO 5178:2019)
Essais destructifs des soudures sur matériaux Zerstörende Prüfung von Schweißverbindungen an
métalliques - Essai de traction longitudinale du métal metallischen Werkstoffen - Längszugversuch an
fondu des assemblages soudés par fusion (ISO Schweißgut in Schmelzschweißverbindungen (ISO
5178:2019) 5178:2019)
This European Standard was approved by CEN on 6 December 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5178:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 5178:2019) has been prepared by Technical Committee ISO/TC 44 "Welding
and allied processes" in collaboration with Technical Committee CEN/TC 121 “Welding and allied
processes” 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 August 2019, and conflicting national standards shall
be withdrawn at the latest by August 2019.
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 5178:2011.
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 5178:2019 has been approved by CEN as EN ISO 5178:2019 without any modification.

INTERNATIONAL ISO
STANDARD 5178
Second edition
2019-01
Destructive tests on welds in metallic
materials — Longitudinal tensile test
on weld metal in fusion welded joints
Essais destructifs des soudures sur matériaux métalliques — Essai
de traction longitudinale du métal fondu des assemblages soudés
par fusion
Reference number
ISO 5178:2019(E)
©
ISO 2019
ISO 5178:2019(E)
© 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
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below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 5178:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 1
5 Principle . 1
6 Removal of test specimens . 2
6.1 Location . 2
6.2 Marking . 2
6.3 Heat treatment and/or ageing . 2
6.4 Extraction . 2
6.4.1 General. 2
6.4.2 Steel . 2
6.4.3 Other metallic material . 2
6.5 Machining of test specimens . 2
6.6 Dimensions . 3
6.7 Surface quality . 4
7 Conditions of testing . 4
8 Test results . 4
8.1 General . 4
8.2 Examination of fracture surfaces . 4
9 Test report . 4
Annex A (informative) Example of a test report . 5
ISO 5178:2019(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 44, Welding and allied processes,
Subcommittee SC 5, Testing and inspection of welds.
Any feedback, question or request for official interpretation related to any aspect of this document
should be directed to the Secretariat of ISO/TC 44/SC 5 via your national standards body. A complete
listing of these bodies can be found at www .iso .org/members .html. Official interpretations, where they
exist, are available from this page: https: //committee .iso .org/sites/tc44/home/interpretation .html.
This second edition cancels and replaces the first edition (ISO 5178:2001), which has been technically
revised. The main changes compared to the previous edition are as follows:
— the normative reference has been revised from ISO 6892 to ISO 6892-1;
— new mandatory Clause 3 has been added;
— Clauses 5 and 9 have been improved.
iv © ISO 2019 – All rights reserved

INTERNATIONAL STANDARD ISO 5178:2019(E)
Destructive tests on welds in metallic materials —
Longitudinal tensile test on weld metal in fusion welded
joints
1 Scope
This document specifies the sizes of test specimens and the test procedure for carrying out longitudinal
tensile tests on cylindrical test specimens in order to determine the mechanical properties of weld
metal in a fusion welded joint.
This document applies to metallic materials in all forms of product with joints made by any fusion
welding process, having joint sizes that are sufficient to obtain cylindrical test specimens with
dimensions in accordance with ISO 6892-1.
Unless specified otherwise for specific points in this document, the general principles of ISO 6892-1 apply.
2 Normative r
...