material requirement of external attachments directly welded to shell( wind girder heating pannels)
material requirement of external attachments directly welded to shell( wind girder heating pannels)
(OP)
Hi,
Good day,
It is a general practice that we use curb and wind girders of A36 material, even if the material of shell is A 516 Gr 70.As per my knowledge, API 650 is not saying anything about material of external attachments which are directly welded to shell. I have a tank of material A 516 Gr 60N, and there contrace heating system coming on the tank, and that Cotrotrace heating panel is of A 516 Gr 70N. to my understanding, if curb angle and wind girder can be of different material, than surely there should problem of welding other attachment, like heating panel, bosses etc.
Regards,
Inam
Good day,
It is a general practice that we use curb and wind girders of A36 material, even if the material of shell is A 516 Gr 70.As per my knowledge, API 650 is not saying anything about material of external attachments which are directly welded to shell. I have a tank of material A 516 Gr 60N, and there contrace heating system coming on the tank, and that Cotrotrace heating panel is of A 516 Gr 70N. to my understanding, if curb angle and wind girder can be of different material, than surely there should problem of welding other attachment, like heating panel, bosses etc.
Regards,
Inam





RE: material requirement of external attachments directly welded to shell( wind girder heating pannels)
Should be no problem welding A516-70N to the wind girder. They may use that material as a matter of course so that they can weld it to shells. If welding stainless and carbon steel, differential expansion may be an issue, though.
RE: material requirement of external attachments directly welded to shell( wind girder heating pannels)
RE: material requirement of external attachments directly welded to shell( wind girder heating pannels)
RE: material requirement of external attachments directly welded to shell( wind girder heating pannels)
For example can i weld a 35 mm thick A36 anchor chair top plate to 516 Gr 70 shell?
RE: material requirement of external attachments directly welded to shell( wind girder heating pannels)
My (internet opinion only)