sathish kumar dhanasekaran
Petroleum
- Apr 6, 2020
- 6
good afternoon
a stainless steel a 312 type 304 earth lug plate fillet weld with alloy steel a 335 grade p11 .my query is which filler wire is used to weld a joint. stainless steel line can not possible to preheat and post weld heat treatment .why because its low thermal conductivity and high thermal expansion . but alloy p11 needed a preheat and post weld heat treatment to prevent the oxidation problem .. so for this case what can we do to solve this problem sir.[preheat and pwht needed or not]
thanking you
a stainless steel a 312 type 304 earth lug plate fillet weld with alloy steel a 335 grade p11 .my query is which filler wire is used to weld a joint. stainless steel line can not possible to preheat and post weld heat treatment .why because its low thermal conductivity and high thermal expansion . but alloy p11 needed a preheat and post weld heat treatment to prevent the oxidation problem .. so for this case what can we do to solve this problem sir.[preheat and pwht needed or not]
thanking you