Dear Member,
Hope the following from ASME Sec II will help.
A6.10.3 Toughness. Charpy V-notch impact requirements
are included in the specification. All classes of electrodes
in the specification can produce weld metal of
sufficient toughness for many applications. The inclusion
of impact requirements for certain electrode classifications
allows the specification to be used as a guide in selecting
electrodes where low-temperature toughness is required.
There can be considerable variation in the weld metal
toughness unless particular attention is given to the welding
procedure and the preparation and testing of the specimens.
The impact energy values are for Charpy V-notch specimens
and should not be confused with values obtained
with other toughness tests.
are included in the specification. All classes of electrodes
in the specification can produce weld metal of
sufficient toughness for many applications. The inclusion
of impact requirements for certain electrode classifications
allows the specification to be used as a guide in selecting
electrodes where low-temperature toughness is required.
There can be considerable variation in the weld metal
toughness unless particular attention is given to the welding
procedure and the preparation and testing of the specimens.
The impact energy values are for Charpy V-notch specimens
and should not be confused with values obtained
with other toughness tests.
Sandeep Mehta
Mo : 09825736574
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On Wed, Aug 22, 2012 at 3:16 PM, mohd <mohd52100@gmail.com> wrote:
dear experts,
We have land in difficult situtuation due to welders mistakes.
Electrode E7018H4R impact require -46deg but by mistakes welder used
some electrodes E7018H4R -29deg during welding of 3 long seam 25m
(filling n caping)
Materials 516 gr 60 thk 40t.
Process GTAW+SMAW
What could be solution? To save joint.
Client already given cut out.
Regards,
Mohammed.
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