316 SS welded inside black pipe

[beadlayer]

I need to weld a 316 SS cone inside a 6" sch 40 black pipe. Can I do this and how? I have SMAW and Tig welders but have never welded these two metals together. Inside pressure will reach at least 650 psi.

 

[metengr]

beadlayer;
The welding of these two dissimilar metal welds is common. The recommended filler metal is E309 (SMAW) or ER309 (GTAW).
You should have a qualified welding procedure and welder in accordance with ASME B&PV Code, Section IX. If the internal pressure is 650 psi, you should be following a piping code, like one of the ASME B31.X Standards for welding and inspection requirements.

 

[beadlayer]

metengr,
Thank you for your reply when I get it done I'll post how it turned out.

 

[corrosionman]

our message is not very clear but it sounds like your job has stainless and black steeljoined together INSIDE a pipe Ie in the pipe contents If your system then allows it, dissimilar metal corrosion will MASSIVELY increase the corrosion of the black steel, and inside a pipe at 650 psi ???? !!!!!!!!!
Stand well back.