Copper is one of the elements which causes HOT CRACK.
There are two types of Hot Crack
1. Solidification Cracks: Occurs in the Weld Metal (Usually along the
centerline of the weld) as a result of the solidification process.
2. Liquation cracks: Occurs in the course grain HAZ, in the near
vincity of the fusion line as a result of heating the material to an
elevated temperature, high enough to produce liquation of the low
melting point constituents placed on grain boundaries.
Weld bead solidification started above 1400 deg C, and the melting
points of copper is near 1100 deg C.
This is the basic reason.
On Tue, Nov 29, 2011 at 7:02 PM, mpk mpk <firstname.lastname@example.org> wrote:
> Dear Experts,
> What is the Root cause for copper crack in SAW welding ?
> To post to this group, send email to email@example.com
> To unsubscribe from this group, send email to
> For more options, visit this group's bolg at
> The views expressed/exchnaged in this group are members personel views and
> meant for educational purposes only, Users must take their own decisions
> w.r.t. applicable code/standard/contract documents.
Thanks & Regards
Industrial Services, Inspection Engineer.
SGS India Pvt. Ltd.
Information in this email and any attachments is confidential and
intended solely for the use of the individual(s) to whom it is
addressed or otherwise directed. Please note that any views or
opinions presented in this email are solely those of the author and do
not necessarily represent those of the Company. Finally, the recipient
should check this email and any attachments for the presence of
viruses. Myself accepts no liability for any damage caused by any
virus transmitted by this email.
To post to this group, send email to firstname.lastname@example.org
To unsubscribe from this group, send email to email@example.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.