API 5L X70 welding filler metal
API 5L X70 welding filler metal
(OP)
Dear All,
Can some body help me to determine the filler metal type to weld API 5L X70 pipe thickness 18mm with FCAW and SMAW process.
Thank you
Can some body help me to determine the filler metal type to weld API 5L X70 pipe thickness 18mm with FCAW and SMAW process.
Thank you





RE: API 5L X70 welding filler metal
http://www.weldreality.com/ASTM_API.htm
recommends
E7018
and
E71T-1
http://www.welding-advisers.com/
RE: API 5L X70 welding filler metal
I assume you are not going to PWHT. In that case, I would use either E81T1-K2 (more than 1% Ni, so make sure NACE requriements for sour service are not imposed), or 8018-C3.
RE: API 5L X70 welding filler metal
Why not E8010G without PWHT?
RE: API 5L X70 welding filler metal
As in most situations, there are numerous choices that will work. I've done as GRoberts has suggested and qualified a procedure using a low Ni electrode, but, Lincoln recommends among other things, 8018G. As to PWHT, you'll have to evaluate whether or not this is necessary based on other criteria.
RE: API 5L X70 welding filler metal
RE: API 5L X70 welding filler metal
What is your opinion?
RE: API 5L X70 welding filler metal
RE: API 5L X70 welding filler metal
The API 5L is not so clear
Best regards
RE: API 5L X70 welding filler metal
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdo/
RE: API 5L X70 welding filler metal