TP-317L to 410S
TP-317L to 410S
(OP)
Developing 317L (P8) to 410S (P7) & 387-Gr.11 (P4) to 410S (P7) WPS What should the pre-heat be I done some research & there is no definitive ranges found. 300F was the most common recommendation.
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RE: TP-317L to 410S
RE: TP-317L to 410S
RE: TP-317L to 410S
You don't want to retard cooling too much, the 410S will start embrittling above 600F and the 317 is also likely to start forming sigma if it is kept too hot for too long.
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P.E. Metallurgy, Plymouth Tube
RE: TP-317L to 410S
For the P4 to P7 joint, I would limit the preheat to 200 deg F, and watch the heat input.
RE: TP-317L to 410S
What filler are you planning to use for this particular joint?
RE: TP-317L to 410S