[MW:20189] Welding filler material suitable to service temperature minus 196 deg C

Dear Experts,

We have a requirement for welding CF8M cast material to service temperature minus 196 DEG C. this welded component is practically not feasible to be subjected to PWHT.

We find Filler E 316L Mn-15 can be used as it is capable of yielding impact requirement of 60J @minus 196 Deg C.

Is this filler be crack resistant(such as fissures), since this has very low ferrite level less than 1% ?

Please clarify the above.

Thanks,

MANIVANNAN.P

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