Effect of Ca on weldability of pipeline steels
Effect of Ca on weldability of pipeline steels
(OP)
1. How and why is Ca added(if at all added purposely) to line pipe steels?
2. DnV 2000 restricts the Ca content to 0.6%. Does increasing the Ca content affect weldability? If so how does it affect weldability?
3. Does increasing Ca in line pipe steels affect welding(especially automatic GMAW/P-GMAW welding) by any of the following:
Does Ca have anything to do with the fluidity of the weld pool?
Or does it have to do with the hardness of HAZ?
Or does it affect the desired HI to do the welding? (By probably preventing fusion with base metal…LOF is one of the most prominent defects when using automatic GMAW/P-GMAW welding of pipe lines)
2. DnV 2000 restricts the Ca content to 0.6%. Does increasing the Ca content affect weldability? If so how does it affect weldability?
3. Does increasing Ca in line pipe steels affect welding(especially automatic GMAW/P-GMAW welding) by any of the following:
Does Ca have anything to do with the fluidity of the weld pool?
Or does it have to do with the hardness of HAZ?
Or does it affect the desired HI to do the welding? (By probably preventing fusion with base metal…LOF is one of the most prominent defects when using automatic GMAW/P-GMAW welding of pipe lines)
Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
email: sayee_prasad@yahoo.com
The whole of science is nothing more than a refinement of everyday thinking!!!





RE: Effect of Ca on weldability of pipeline steels
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: Effect of Ca on weldability of pipeline steels
Does Ca have anything to do with grain refinement by increasing nucleation sites during solidification???
Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
email: sayee_prasad@yahoo.com
The whole of science is nothing more than a refinement of everyday thinking!!!
RE: Effect of Ca on weldability of pipeline steels
RE: Effect of Ca on weldability of pipeline steels
Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
email: sayee_prasad@yahoo.com
The whole of science is nothing more than a refinement of everyday thinking!!!