Max. Interpass Temp for Duplex SS
Max. Interpass Temp for Duplex SS
(OP)
I've just read the below thread...
Super Duplex Interpass Temperature
thread1135-200242: Super Duplex Interpass Temperature
I find the requirement of maximum interpass temperature at 100 Deg.C. from Avesta 2507/P100 for TIG welding.
Due to the previous thread has been closed. Therefore, I create new thread and hope to see your comment for the subject.
Super Duplex Interpass Temperature
thread1135-200242: Super Duplex Interpass Temperature
I find the requirement of maximum interpass temperature at 100 Deg.C. from Avesta 2507/P100 for TIG welding.
Due to the previous thread has been closed. Therefore, I create new thread and hope to see your comment for the subject.





RE: Max. Interpass Temp for Duplex SS
RE: Max. Interpass Temp for Duplex SS
Max 150 deg C as per API RP 582.
Looks like it is 150 deg C all round really.
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Max. Interpass Temp for Duplex SS
RE: Max. Interpass Temp for Duplex SS
Avesta suggest different temperature for the different grades of duplex.
150°C for LDX2101
below 200°C for 2304 and 2205
below 100°C for 2507
http://www.avestawelding.com/3756.epibrw
welding stainless steel
S
Corrosion Prevention & Corrosion Control
RE: Max. Interpass Temp for Duplex SS
The super duplex grades (2507, 2709, Xeron 100, 255) are very sensitive and require lower temps. 100C agrees with what I have seen in practice.
I know of shops that have chosen to use 100C for all duplex grades. It isn't that big of a deal and it makes it less likely that a mistake will be made.
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube
RE: Max. Interpass Temp for Duplex SS
RE: Max. Interpass Temp for Duplex SS