Requirements of Post Heating in Welding P91 to T91 using GTAW
Requirements of Post Heating in Welding P91 to T91 using GTAW
(OP)
Good day,
In GTAW welding of P91/T91 tube to header weld, is post heating a mandatory requirements? What are codes to support this query. Thank you.
In GTAW welding of P91/T91 tube to header weld, is post heating a mandatory requirements? What are codes to support this query. Thank you.





RE: Requirements of Post Heating in Welding P91 to T91 using GTAW
RE: Requirements of Post Heating in Welding P91 to T91 using GTAW
I know post weld heat treatment is required on P No. 15E base on ASME but my concern is about post heating or post baking. Post bake temperature probably higher than that of the preheat maintenance (200C to 300C) base on EN1011-2. Is there other code mention that when welding P No. 15E materials with a GTAW process, a mandatory post bake is required?
Thanks!
RE: Requirements of Post Heating in Welding P91 to T91 using GTAW
RE: Requirements of Post Heating in Welding P91 to T91 using GTAW