EN ISO 17641-2:2005
(Main)Destructive tests on welds in metallic materials - Hot cracking tests for weldments - Arc welding processes - Part 2: Self-restraint tests (ISO 17641-2:2005)
Destructive tests on welds in metallic materials - Hot cracking tests for weldments - Arc welding processes - Part 2: Self-restraint tests (ISO 17641-2:2005)
ISO 17641-2:2005 specifies the required specimens, the test piece dimensions and the procedures to be followed to carry out self-restraint hot cracking tests.
The following tests are described:
T-joint weld cracking test;
weld metal tensile test;
longitudinal bend test.
The tests are designed to provide information about the hot cracking sensitivity of weld metals. The tests are not suitable for the assessment of parent materials.
This International Standard applies primarily to fully austenitic stainless steels; nickel, nickel-base and nickel-copper weld metals. It can also be used for other weld metals.
ISO 17641-2:2005 describes only how to carry out the tests and report the results. It does not give any acceptance criteria.
Zerstörende Prüfung von Schweißverbindungen an metallischen Werkstoffen - Heißrissprüfungen für Schweißungen - Lichtbogenschweißprozesse - Teil 2: Selbstbeanspruchende Prüfungen (ISO 17641-2:2005)
Diese Norm legt die Maße der Prüfstücke, die Proben und die Verfahren von selbstbeanspruchten Heißrißprüfungen fest, für: - Rißprüfung am T-Stoß; - Zugprüfung am Schweißgut; - Längsbiegeprüfung zwecks Ermittlung von Informationen über die Heißrißempfindlichkeit von Schweißzusätzen und Grundwerkstoffen beim Schweißen.
Essais destructifs des soudures sur matériaux métalliques - Essais de fissuration à chaud des assemblages soudés - Procédés de soudage à l'arc - Partie 2: Essais sur éprouvettes auto-bridées (ISO 17641-2:2005)
L'ISO 17641-2:2005 spécifie les éprouvettes exigées, les dimensions des pièces d'essai et les modes opératoires à suivre pour effectuer les essais de fissuration sur éprouvettes auto-bridées.
Les essais suivants sont concernés: essai de fissuration sur assemblage soudé en T; essai de traction du métal fondu; essai de pliage longitudinal.
Les essais sont conçus pour obtenir des informations sur la sensibilité à la fissuration à chaud du métal fondu. Les essais ne conviennent pas pour l'évaluation des matériaux de base.
L'ISO 17641-2:2005 s'applique principalement au métal fondu en acier inoxydable, nickel, alliages à base de nickel et alliages à base de nickel-cuivre. La norme peut également s'appliquer à d'autres types de métal fondu.
L'ISO 17641-2:2005 décrit la manière de procéder aux essais et de rapporter les résultats. Elle ne fournit aucun critère d'acceptation.
Porušitveni preskusi zvarov na kovinskih materialih – Preskusi na pokanje v vročem za zvarne spoje – Obločni načini varjenja – 2. del: Preskus pokljivosti na prosto vpetem preskušancu (ISO 17641-2:2005)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2005
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Destructive tests on welds in metallic materials - Hot cracking tests for weldments - Arc
welding processes - Part 2: Self-restraint tests (ISO 17641-2:2005)
Zerstörende Prüfung von Schweißverbindungen an metallischen Werkstoffen -
Heißrissprüfungen für Schweißungen - Lichtbogenschweißprozesse - Teil 2:
Selbstbeanspruchende Prüfungen (ISO 17641-2:2005)
Essais destructifs des soudures sur matériaux métalliques - Essais de fissuration a
chaud des assemblages soudés - Procédés de soudage a l'arc - Partie 2: Essais sur
éprouvettes auto-bridées (ISO 17641-2:2005)
Ta slovenski standard je istoveten z: EN ISO 17641-2:2005
ICS:
25.160.40 Varjeni spoji in vari Welded joints
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 17641-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2005
ICS 25.160.40
English version
Destructive tests on welds in metallic materials - Hot cracking
tests for weldments - Arc welding processes - Part 2: Self-
restraint tests (ISO 17641-2:2005)
Essais destructifs des soudures sur matériaux métalliques - Zerstörende Prüfung von Schweißverbindungen an
Essais de fissuration à chaud des assemblages soudés - metallischen Werkstoffen - Heißrissprüfungen für
Procédés de soudage à l'arc - Partie 2: Essais sur Schweißungen - Lichtbogenschweißprozesse - Teil 2:
éprouvettes auto-bridées (ISO 17641-2:2005) Selbstbeanspruchende Prüfungen (ISO 17641-2:2005)
This European Standard was approved by CEN on 9 February 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17641-2:2005: E
worldwide for CEN national Members.
Contents page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Symbols, designations and units.4
5 Principle.5
6 Description of the tests.6
6.1 T-joint weld cracking tests.6
6.1.1 General.6
6.1.2 Dimension of the test pieces .6
6.1.3 Preparation of the test pieces .8
6.1.4 Welding of the test pieces .9
6.1.5 Examination of the test piece .9
6.1.6 Test report .9
6.2 Weld metal tensile test .9
6.2.1 General.9
6.2.2 Test specimen.9
6.2.3 Examination of the test specimen.10
6.2.4 Test report .11
6.3 Longitudinal bend test .11
6.3.1 General.11
6.3.2 Test weld.11
6.3.3 Test specimen.11
6.3.4 Surface preparation.13
6.3.5 Testing .13
6.3.6 Examination of the test specimen.13
6.3.7 Test report .13
Annex A (informative) Test report for T-joint weld cracking test .14
Annex B (informative) Test report for weld metal tensile test .15
Annex C (informative) Test report for longitudinal bend test .16
Annex ZA (normative) List of corresponding European and International Standards for which
equivalents are not given in the text.17
Foreword
This document (EN ISO 17641-2:2005) has been prepared by Technical Committee CEN/TC 121 “Welding”,
the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 44 “Welding and
allied processes”.
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 September 2005, and conflicting national standards shall be
withdrawn at the latest by September 2005.
EN ISO 17641 consists of the following parts, under the general title Destructive tests on welds in metallic
materials – Hot cracking tests for weldments – Arc welding processes:
-Part 1: General
-Part 2: Self-restraint tests
-Part 3: Externally loaded tests
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
Part 3 will be published as a Technical Report with the same general title.
1 Scope
This standard specifies the required specimens, the test piece dimensions and the procedures to be followed
to carry out self-restraint hot cracking tests.
The following tests are described:
T-joint weld cracking test
Weld metal tensile test
Longitudinal bend test
The tests are designed to provide information about the hot cracking sensitivity of weld metals. The tests are
not suitable for the assessment of parent materials.
The standard applies primarily to fully austenitic stainless steels; nickel, nickel base and nickel copper weld
metals. The standard can also be used for other weld metals.
This standard describes only how to carry out the tests and report the results. It does not give any acceptance
criteria.
2 Normative references
The following referenced documents are indispensable for the application 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.
EN 876, Destructive tests on welds in metallic materials - Longitudinal tensile test on weld metal in fusion
welded joints
EN 910, Destructive tests on welds in metallic materials - Bend tests
EN 1597-1, Welding consumables - Test methods - Part 1: Test piece for all-weld metal test specimens in
steel, nickel and nickel alloys
EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature
EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials - Welding
procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-
1:2004)
EN ISO 17641-1:2004, Destructive tests on welds in metallic materials - Hot cracking tests for weldments –
Arc welding processes - Part 1: General (ISO 17641-1:2004)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 17641-1:2004 apply.
4 Symbols, designations and units
For the purposes of this European Standard, the symbols and units given in Table 1 apply.
Table 1 - Symbols, designations and units
Symbol Designation Unit
T-joint weld cracking test
a Throat thickness of weld bead 1 mm
a Throat thickness of weld beat 2 mm
t Thickness of vertical plate, form C mm
t Thickness of horizontal plate, form C mm
Weld metal tensile test
d Specimen diameter mm
L Test length mm
c
L Measuring length on the test specimen mm
o
a
L mm
e Measuring length on the test specimen after fracture
L Total length mm
t
L Total crack length of all detected cracks > 0,1 mm mm
MF
I Length of an individual crack mm
b
MSI mm/mm
(TT) Microcracks Sensitivity Indicator (Tensile test)
Longitudinal bend test (LBT)
R Radius of the test specimen edges >1 mm
B Width of the test specimen mm
b Width of outside fusion line mm
l Length of an individual crack mm
l Length of crack examination area before bending mm
o
L Total crack length of all detected cracks >0.1 mm
MF
L Maximum width of the weld after machining mm
s
c
MSI mm/mm
(LBT) Microcrack Sensitivity Indicator (Longitudinal Bend Test )
a
X1+X2=L see Figure 4
e,
b
MSI = L l L x d x π
MF o
c
MSI = L l b x l
MF o
5 Principle
Three test methods are described which are designed to measure the sensitivity of weld metals to the types of
hot cracking described in clause 3. These test methods are described in Table 2.
In all cases the cracks are generated during the welding of the test pieces. The tensile test and longitudinal
bend test are subjected to additional straining, which does not generate any new cracks, but widens the
cracks formed during the welding, which enables them to be more easily detected and measured.
Table 2 - Self-restraint hot cracking tests and applications
Type of Test Types of cracking Results Applications
Qualification of welding
consumables
T-joint weld
Solidification Qualitative
cracking test
Qualification test for welding
consumables
Solidification Welding procedure qualification
Liquation Production weld coupon test
Qualitative or quantitative if
Weld metal
Microcrack Sensitivity Index
Qualification of consumables
tensile tests
MSI is used
(TT)
Ductility dip
Qualification test for welding
consumables
Solidification Welding procedure qualification
Liquation Production weld coupon test
Longitudinal Qualitative or quantitative if
Qualification of welding
bend test MSI is used
(LBT)
consumables
Ductility dip
Qualification test for welding
consumables
6 Description of the tests
6.1 T-joint weld cracking tests
6.1.1 General
The test procedure applies to a single pass restrained fillet weld. It can be used with the manual shielded
metal arc, gas metal arc and tungsten arc welding processes. It is not suitable for high current processes such
as submerged arc.
The test method only provides a qualitative assessment (cracks or no cracks) and has a comparatively low
sen
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