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Norm
ÖNORM EN 12797
Issue date: 2004 04 01
Brazing - Destructive tests of brazed joints (EN 12797:2000 + A1:2003)
This European Standard describes destructive test procedures and test piece types necessary
to perform the tests on brazed joints.
Brazed joints are used in a wide vari...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 30 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This European Standard describes destructive test procedures and test piece types necessary
to perform the tests on brazed joints.
Brazed joints are used in a wide variety of assemblies and the design requirements placed
upon these joints will also vary widely; there will usually be some level of strength required
but this may not be explicitly stated and is frequently of minor importance compared to some
other criterion, e.g. hermeticity. It follows that a test which measures strength may be totally
irrelevant in assessing a joint for a particular application where strength is a minor
consideration. This situation is made more complicated because brazed joints are almost
invariably designed to be loaded in shear and the dimensions of the joint affect the shear
strength to a much greater extent than they do the tensile strength. The tests described in this
standard have been used successfully to give information on specific properties and where
such information is needed, it is recommended that one of them be specified.
It is vital to recognise that for many fabrications none of these tests will be suitable and
specific tests will have to be devised, which do yield the requisite information (which may be
qualitative rather then quantitative). The destructive test methods described are as follows:
a) shear tests (see clause 4);
b) tensile tests (see clause 5);
c) metallographic examination (see clause 6);
d) hardness tests (see clause 7);
e) peel test (see clause 8);
f) bend tests (see clause 9).
Details of burst tests are not included as these are not commonly used on brazed joints.
The type of test piece described for each test can be quoted or incorporated in engineering
applications standards that deal with brazed assemblies.
The results of the tests are used:
1) to determine basic data regarding filler metal performance;
2) to arrive at optimum brazing designs (including gaps) and brazin (...abbreviated)
ÖNORM EN 12797
2004 04 01
Brazing - Destructive tests of brazed joints (EN 12797:2000 + A1:2003)
Norm
↖
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Issue date :
1985 04 25
Welding and allied processes — Assemblies made with soft solders and brazing filler metals — Mechanical test methods
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Issue date :
2002 01 01
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Brazing - Non-destructive examination of brazed joints (EN 12799:2000 + A1:2003)
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1996 06 01
Destructive tests on welds in metallic materials - Bend tests
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2006 10 01
Metallic materials - Vickers hardness test - Part 1: Test method (ISO 6507-1:2005)
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Issue date :
1985 04 25
Welding and allied processes — Assemblies made with soft solders and brazing filler metals — Mechanical test methods