Welding on B7 material
Welding on B7 material
(OP)
We recently discovered a supplier had substituted B7 studs in place of the SA36 we ordered. (a no charge "upgrade") Some of these B7 studs got welded to SA516-70 plate as a lifting device (GMAW ER70S-6). I know that ASME does not recognize B7 as a weldable material, but this is not an ASME Code weld. It just needs to work. I am not concerned with the diminished tensile strength of the stud materials as it is not under high load. Perhaps 500 pounds on a 1" stud.
The question I have is, are these welds mechanically sound? Or is the B7 so hard that it will simply crack at the heat affected zone under impact? Or...???
Many of them are in the field and replacement would be difficult to replace.
Thanks
The question I have is, are these welds mechanically sound? Or is the B7 so hard that it will simply crack at the heat affected zone under impact? Or...???
Many of them are in the field and replacement would be difficult to replace.
Thanks





RE: Welding on B7 material
You said 1" stud, but how much weld?
Can you NDE 'em all?
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Welding on B7 material
RE: Welding on B7 material
RE: Welding on B7 material
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Welding on B7 material
RE: Welding on B7 material
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Welding on B7 material
RE: Welding on B7 material
RE: Welding on B7 material
RE: Welding on B7 material
Does anyone actually feel comfortable that WFMT will accurately be able to find an indication in a 1" thread root? I've never tried, but I can't imagine it not immediately lighting everything up...
RE: Welding on B7 material
Be sure to "bash them around" at minimum ambient temperatures.