Welding Nickel Alloys & Interpass Temperature

[Dlew]

What impact does interpass temperature has in welding of nickel alloys?
What are the recommendations?

[ivani1]

Low interpass temperature is recommended for nickel alloys.
API 582 should be a good reference in this case.
Check out which Ni alloy are you dealing with.
Recommendation is between 150 - 200 C.

[mechcolor]

Based upon the material P-number, API 582 enlists the recommended value of interpass temperature.
For your specific case, just check P-number and refer.

[Dlew]

My interest is towards the non-compliance of ensuring maximum interpass during welding of nickel alloys.
We are dealing with Inconel 625.

[octane]

P-number is 43 for Inconel 625 and the maximum interpass tempearature as listed in API 582 is 175 C.
Checked and verified from 2023, 4th edition I have.

My interest is towards the non-compliance of ensuring maximum interpass during welding of nickel alloys.
We are dealing with Inconel 625.

[Dlew]

Thanks but in case if that is not complied with, what could actually happen, and how to then rectify?
Would non-compliance be detrimental?