erichenry
Industrial
- May 20, 2015
- 15
I need to certify some welders in all nickel base materials. (ex. P41 thur P47). The question I have is there one certain Nickel Base material I can have them do a weld coupon for that will certify them in all Nikel Base material, or do I need to have them do a weld coupon pre material.