Destructive tests on welds in metallic materials - Bend tests (ISO/DIS 5173:2017)

2018-09-17: WI abandoned following cancellation of equivalent WI in ISO (ISO notification to dataservice on 2018-09-13).

Zerstörende Prüfungen von Schweißnähten an metallischen Werkstoffen - Biegeprüfungen (ISO/DIS 5173:2017)

Diese Internationale Norm legt ein Verfahren zur Durchführung von wurzelseitigen, oberseitigen Quer- und Seitenbiegeprüfungen an Probestücken aus Stumpfnähten, Stumpfnähten mit Plattierung (unterteilt in Schweißungen in Plattierungsblechen und in Plattierungsschweißnähten) und Plattierung ohne Stumpfnähte fest, um die Verformbarkeit und/oder das Fehlen von Unregelmäßigkeiten an oder nahe der Oberfläche des Probestücks zu beurteilen. Sie gibt ebenso die Maße des Probestücks an.
Darüber hinaus legt diese Internationale Norm ein Verfahren zur Durchführung von wurzelseitigen und oberseitigen Längsbiegeprüfungen fest, die an Stelle der Querbiegeprüfungen für heterogene Komponenten eingesetzt werden, wenn Grundwerkstoffe und/oder Schweißzusatz deutliche Unterschiede in ihre physikalischen und mechanischen Eigenschaften hinsichtlich der Biegung besitzen.
Diese Internationale Norm gilt für Metallwerkstoffe jeglicher Produktform mit Schweißverbindungen, die mit jeder Art von Schweißverfahren erzeugt werden.

Essais destructifs des soudures sur matériaux métalliques - Essais de pliage (ISO/DIS 5173:2017)

Porušitveno preskušanje zvarov na kovinskih materialih - Upogibni preskusi (ISO/DIS 5173:2017)

General Information

Status
Not Published
Public Enquiry End Date
29-Jun-2017
Technical Committee
Current Stage
98 - Abandoned project (Adopted Project)
Start Date
17-Jan-2020
Due Date
22-Jan-2020
Completion Date
20-Jan-2020

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SLOVENSKI STANDARD
oSIST prEN ISO 5173:2017
01-junij-2017
Porušitveno preskušanje zvarnih spojev na kovinskih materialih - Upogibni
preskusi (ISO/DIS 5173:2017)
Destructive tests on welds in metallic materials - Bend tests (ISO/DIS 5173:2017)
Zerstörende Prüfungen von Schweißnähten an metallischen Werkstoffen -
Biegeprüfungen (ISO/DIS 5173:2017)
Essais destructifs des soudures sur matériaux métalliques - Essais de pliage (ISO/DIS
5173:2017)
Ta slovenski standard je istoveten z: prEN ISO 5173
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
oSIST prEN ISO 5173:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 5173:2017

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oSIST prEN ISO 5173:2017
DRAFT INTERNATIONAL STANDARD
ISO/DIS 5173
ISO/TC 44/SC 5 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2017-04-11 2017-07-03
Destructive tests on welds in metallic materials — Bend
tests
Essais destructifs des soudures sur matériaux métalliques — Essais de pliage
ICS: 25.160.40
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 5173:2017(E)
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. ISO 2017

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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(E) ISO/DIS 5173:2017(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Terms and definitions . 1
3 Principle . 2
4 Symbols and abbreviated terms . 2
4.1 Symbols . 2
4.2 Abbreviated terms . 3
4.3 Figures corresponding to the abbreviations . 4
5 Preparation of test specimens . 6
5.1 General . 6
5.2 Location . 6
5.3 Marking . 7
5.4 Heat treatment and/or ageing . 7
5.5 Extraction . 7
5.6 Specimen size . 7
6 Conditions of testing . 11
6.1 Etching . 11
6.2 Testing . 11
6.3 Diameter of former and roller . 17
6.4 Distance between rollers . 17
6.5 Bending angle. 17
6.6 Bending elongation . 17
7 Test results . 18
8 Test report . 18
(informative) Example of a test report . 19


COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, 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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Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
© ISO 2017 – All rights reserved
iii
ii © ISO 2017 – All rights reserved

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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Terms and definitions . 1
3 Principle . 2
4 Symbols and abbreviated terms . 2
4.1 Symbols . 2
4.2 Abbreviated terms . 3
4.3 Figures corresponding to the abbreviations . 4
5 Preparation of test specimens . 6
5.1 General . 6
5.2 Location . 6
5.3 Marking . 7
5.4 Heat treatment and/or ageing . 7
5.5 Extraction . 7
5.6 Specimen size . 7
6 Conditions of testing . 11
6.1 Etching . 11
6.2 Testing . 11
6.3 Diameter of former and roller . 17
6.4 Distance between rollers . 17
6.5 Bending angle. 17
6.6 Bending elongation . 17
7 Test results . 18
8 Test report . 18
(informative) Example of a test report . 19


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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(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 on 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 the following URL:
www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee
SC 5, Testing and inspection of welds.
This edition cancels and replaces the thrid edition (ISO 5173:2009+Amd 1:2011) which has been
technically revised.
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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(E)
DRAFT INTERNATIONAL STANDARD ISO/DIS 5173:2017(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
Destructive tests on welds in metallic materials — Bend tests
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
1 Scope
collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
This International Standard specifies a method for making transverse root, face and side bend tests on
test specimens taken from butt welds, butt welds with cladding (subdivided into welds in clad plates and
The procedures used to develop this document and those intended for its further maintenance are
clad welds) and cladding without butt welds, in order to assess ductility and/or absence of imperfections
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
on or near the surface of the test specimen. It also gives the dimensions of the test specimen.
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).
In addition, this International Standard specifies a method for making longitudinal root and face bend
Attention is drawn to the possibility that some of the elements of this document may be the subject of tests to be used instead of transverse bend tests for heterogeneous assemblies when base materials
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any and/or filler metal have a significant difference in their physical and mechanical properties in relation to
patent rights identified during the development of the document will be in the Introduction and/or on bending.
the ISO list of patent declarations received (see www.iso.org/patents).
This International Standard applies to metallic materials in all forms of product with welded joints made
Any trade name used in this document is information given for the convenience of users and does not by any welding process.
constitute an endorsement.
2 Terms and definitions
For an explanation on 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)
For the purposes of this document, the following apply.
principles in the Technical Barriers to Trade (TBT) see the following URL:
www.iso.org/iso/foreword.html. 2.1
transverse face bend test specimen for a butt weld
The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee
TFBB
SC 5, Testing and inspection of welds.
specimen for which the surface in tension is the side that contains the greater width of the weld or the
side from which the welding arc was first applied, applicable to transverse butt weld specimens
This edition cancels and replaces the thrid edition (ISO 5173:2009+Amd 1:2011) which has been
technically revised.
See Figure 1.
2.2
transverse root bend test specimen for a butt weld
TRBB
specimen for which the surface in tension is the side opposite to that of the face butt weld bend test
specimen, applicable to transverse butt weld specimens
See Figure 2.
2.3
transverse side bend test specimen for a butt weld
SBB
specimen for which the surface in tension is a cross-section of the weld
See Figure 3.
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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(E)
2.4
longitudinal face test specimen for a butt weld root bend test specimen for a butt weld
LFBB
LRBB
specimen whose direction is parallel to butt weld direction, applicable to face and root bend specimens
See Figure 4.
2.5
face bend test specimen for cladding without a butt weld
FBC
specimen for which the cladding is in tension, applicable to both transverse and longitudinal specimens
See Figure 5.
2.6
side bend test specimen for cladding without a butt weld
SBC
specimen for which the cross-section of the cladding overlay is in tension, applicable to both transverse
and longitudinal specimens
See Figure 6.
2.7
face bend test specimen for cladding with a butt weld side bend test specimen for cladding with a
butt weld
FBCB
SBCB
specimen for which the cladding is in tension or for which the cross-section of the cladding overlay
is in tension and which contains a butt weld
See Figures 7 and 8.
3 Principle
Submitting a test specimen, taken transversely or longitudinally from a welded joint, to plastic
deformation by bending it, without reversing the bending direction, in such a way that one of the surfaces
or cross-sections of the welded joint is in tension.
Unless otherwise specified, the test shall be carried out at an ambient temperature of between 10 °C and
35 °C. Tests carried out under controlled conditions, where required, shall be made at temperature of
(23 ± 5) °C.
The test shall be made in accordance with one of the methods described in Clause 6.
4 Symbols and abbreviated terms
4.1 Symbols
See Table 1 and Figures 1 to 15.
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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(E) ISO/DIS 5173:2017(E)
2.4
4.2 Abbreviated terms
longitudinal face test specimen for a butt weld root bend test specimen for a butt weld
LFBB
TFBB Transverse face bend test specimen for a butt weld
LRBB
specimen whose direction is parallel to butt weld direction, applicable to face and root bend specimens
TRBB Transverse root bend test specimen for a butt weld
See Figure 4.
SBB Transverse side bend test specimen for a butt weld
2.5
LFBB Longitudinal face bend test specimen for a butt weld
face bend test specimen for cladding without a butt weld
FBC LRBB Longitudinal root bend test specimen for a butt weld
specimen for which the cladding is in tension, applicable to both transverse and longitudinal specimens
FBC Face bend test specimen for cladding without a butt weld
See Figure 5.
SBC Side bend test specimen for cladding without a butt weld
2.6
FBCB Face bend test specimen for cladding with a butt weld
side bend test specimen for cladding without a butt weld
SBC
SBCB Side bend test specimen for cladding with a butt weld
specimen for which the cross-section of the cladding overlay is in tension, applicable to both transverse
and longitudinal specimens
Table 1 — Symbols and designations
See Figure 6.
Symbol Designation Unit
A minimum percentage elongation after fracture required by the material specification %
2.7
face bend test specimen for cladding with a butt weld side bend test specimen for cladding with a
b width of the test specimen mm
butt weld
b width of outside fusion line mm
1
FBCB
SBCB
d diameter of the former or the inner roller mm
specimen for which the cladding is in tension or for which the cross-section of the cladding overlay
a
D mm
outside diameter of the pipe
is in tension and which contains a butt weld
l distance between the rollers mm
See Figures 7 and 8.
L initial distance between contact of the roller and the centre line of the weld mm
f
L original gauge length mm
o
3 Principle
L maximum width of the weld after machining mm
s
Submitting a test specimen, taken transversely or longitudinally from a welded joint, to plastic
L total length of the test specimen mm
deformation by bending it, without reversing the bending direction, in such a way that one of the surfaces t
or cross-sections of the welded joint is in tension.
r radius of the test specimen edges mm
R radius of the rollers mm
Unless otherwise specified, the test shall be carried out at an ambient temperature of between 10 °C and
35 °C. Tests carried out under controlled conditions, where required, shall be made at temperature of t thickness of the test piece mm
(23 ± 5) °C.
t thickness of the cladding mm
c
The test shall be made in accordance with one of the methods described in Clause 6. t thickness of the test specimen mm
s
t thickness of base material under cladding mm
w
4 Symbols and abbreviated terms
α bending angle °

4.1 Symbols
a
The term “pipe”, alone or in combination, is used to mean “pipe”, “tube” or “hollow section (without
rectangular cross section)”.
See Table 1 and Figures 1 to 15.
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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(E)
4.3 Figures corresponding to the abbreviations
Figures 1 to 8 represent bend test specimens for butt welds and cladding.

Figure 1 — Transverse face bend test specimen for a butt weld (TFBB)

Figure 2 — Transverse root bend test specimen for a butt weld (TRBB)

Figure 3 — Transverse side bend test specimen for a butt weld (SBB)
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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(E) ISO/DIS 5173:2017(E)
4.3 Figures corresponding to the abbreviations
Figures 1 to 8 represent bend test specimens for butt welds and cladding.

Figure 4 — Longitudinal bend test specimen for a butt weld (LFBB and LRBB)

Figure 1 — Transverse face bend test specimen for a butt weld (TFBB)

Figure 5 — Face bend test specimen for cladding without a butt weld (FBC)

Figure 2 — Transverse root bend test specimen for a butt weld (TRBB)

Figure 6 — Side bend test specimen for cladding without a butt weld (SBC)

Figure 3 — Transverse side bend test specimen for a butt weld (SBB)
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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(E)

Figure 7 — Face bend test specimen for cladding with a butt weld (FBCB)

Figure 8 — Side bend test specimen for cladding with a butt weld (SBCB)
5 Preparation of test specimens
5.1 General
Specimens shall be prepared in such a manner that the preparation does not affect either the base
material or the weld metal.
5.2 Location
For transverse bend testing of butt welds, the test specimen shall be taken transversely from the welded
joint of the manufactured product or from the welded test piece in such a way that after machining the
weld axis will remain in the centre of the test specimen or at a suitable position for testing.
For longitudinal bend testing of butt welds, the test specimen shall be taken longitudinally from the
welded joint of the manufactured product or from the welded test piece.
The location and orientation of bend test specimens of cladding material shall be specified by the
application standard or by agreement between the contracting parties.
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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(E) ISO/DIS 5173:2017(E)
5.3 Marking
Each test piece shall be marked to identify its exact location in the manufactured product or in the joint
from which it has been removed.
If required by the relevant application standard, the direction of working (e.g. rolling or extrusion) shall
be marked.
Each test specimen shall be marked to identify its exact location in the test piece from which it has been
removed.
5.4 Heat treatment and/or ageing
No heat treatment shall be applied to the welded joint or to the test specimen unless it is specified or
permitted by the relevant application standard dealing with the welded joint to be tested. Details of any

heat treatment shall be recorded in the test report. If natural ageing of aluminium alloys takes place, the
time between welding and testing shall be recorded.
Figure 7 — Face bend test specimen for cladding with a butt weld (FBCB)
5.5 Extraction
5.5.1 General
The mechanical or thermal processes used to extract the test specimen shall not change the properties of
the test specimen in any way. It is permissible to mechanically remove any material that is affected by
thermal cutting provided the finished dimensions of the specimens required by this International
Standard are met.
5.5.2 Steel
Figure 8 — Side bend test specimen for cladding with a butt weld (SBCB)
Shearing shall not be used for thicknesses > 8 mm. If thermal cutting or other cutting methods which
could affect the cut surfaces are used to extract the test specimen from the welded plate, or from the test
5 Preparation of test specimens
piece, the cuts shall be made at a distance ≥ 3 mm from the test specimen but in any case sufficient
(depending on the process used) not to introduce metallurgical effects which could affect the test results.
5.1 General
5.5.3 Other metallic materials
Specimens shall be prepared in such a manner that the preparation does not affect either the base
material or the weld metal. Sheared or thermal cut surfaces are not permitted on bend specimens; only machining (e.g. sawing,
grinding or milling) shall be used.
5.2 Location
5.6 Specimen size
For transverse bend testing of butt welds, the test specimen shall be taken transversely from the welded
5.6.1 Transverse root and face bend tests of a butt weld (TFBB and TRBB)
joint of the manufactured product or from the welded test piece in such a way that after machining the
weld axis will remain in the centre of the test specimen or at a suitable position for testing.
See Figures 1, 2 and 9.
For longitudinal bend testing of butt welds, the test specimen shall be taken longitudinally from the
For transverse root and face bend tests, the test specimen thickness, t , shall be equal to the thickness of
s
welded joint of the manufactured product or from the welded test piece.
the base material adjacent to the welded joint up to a maximum thickness of 30 mm. If the test piece
thickness, t, is greater than 10 mm, the test specimen thickness, t , may be machined or otherwise
s
The location and orientation of bend test specimens of cladding material shall be specified by the
mechanically finished from one side to a thickness equal to (10 ± 0,5) mm as indicated in Figures 1 and
application standard or by agreement between the contracting parties.
weld shall be in tension when the specimen is bent.
2. The face or root of the
When a relevant application standard requires testing of a full thickness > 10 mm, several test specimens
may be taken in order to cover the full thickness of the joint as indicated in Figure 9.
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oSIST prEN ISO 5173:2017
ISO/DIS 5173:2017(E)
In such cases, the location of the test specimen in the welded joint thickness shall be identified.
5.6.2 Transverse side bend tests of a butt weld (SBB)
See Figures 3 and 10.
For side bend tests, the test specimen width, b, shall be equal to the thickness of the base material of the
welded joint. The specimen shall have a thickness, t , of at least (10 ± 0,5) mm, unless otherwise specified
s
in the relevant application standard.
When the joint thickness exceeds 40 mm, it is permissible to split the specimen in the plane of the test
piece thickness as shown in Figure 10. In these cases the location of the test specimen in the welded joint
thickness shall be identified.
5.6.3 Longitudinal bend tests of a butt weld (LFBB and LRBB)
See Figure 4.
For longitudinal bend tests, the test specimen thickness, t , shall be equal to the thickness of the base
s
material near the welded joint, but should not exceed 10 mm. If the test piece thickness, t, is greater than
10 mm, the test specimen thickness, t , may be machined or otherwise mechanically finished from one
s
side to a thickness equal to (10 ± 0,5) mm as indicated in Figure 4. The face or root of the weld shall be in
tension when the specimen is bent.
5.6.4 Face bend tests of cladding material without a butt weld (FBC)
See Figure 5.
For face bend tests, the test specimen thickness, ts, shall be equal to the thickness of the base material
plus the thickness of the cladding, but should not exceed 10 mm. If the test piece thickness, t, is greater
than 10 mm, the test specimen thickness, t , may be machined or otherwise mechanically finished from
s
the base metal to a thickness equal to (10 ± 0,5) mm as indicated in Figure 5, if cladding
...

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