Welding 305 Stainless to A53A steel

By cfryerson Date 01-18-2005 17:05

Can a 3" schedule 40 pipe made from 305 stainless be reliably welded to 3" schedule 40 A53A steel pipe for structural applications?

By Bill Mc (**)

Date 02-09-2005 16:04

Since this is not a pre-qualified joint in AWS D1.6 "Structural Welding Code-Stainless Steel", I'd recommend qualifying a weld procedure first:

I'd also suggest applying an single pass overlay layer of E309 s/s on the carbon steel side of the joint, then weld to the 305 stainless steel side with E308 electrode.

By chall

Date 02-09-2005 16:11

Another approach wold be to use an ASME Section IX qualified WPS. If you have P8 to P1 this is an acceptable combination.

If had this weld to perform, absent job specifications to the contrary, we would weld the complete joint using 309 filler metal. We would use GTAW/SMAW processes.

Charles Hall