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17-4 stainless problem
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dieseldoug16
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    Wed May 11, 2016 2:10 pm
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    Maryland USA

Need to weld 17-4ph to 316 stainless. 1- piece is 4-1/2" solid 17-4 weld to 316 flange. Have tried E-308L no peneration
Tried preheat 400 the 17-4 tig rod, wrap in blankets to slow cool and have cracks
Suggestion
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    Sun May 01, 2016 7:46 am
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    Fort Myers Florida

Yeah it sucks like Inconel. No pre-heat, keep interpass down around 240-250 and post weld annealing by the book.
AWS D1.1 / ASME IX / CWB / API / EWI / RWMA / BSEE
Scientists have substituted mathematics for experiments, and they wander off through equation after equation, and eventually build a structure which has no relation to reality." Nikola Tesla
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Sandow
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    Fri Mar 04, 2016 4:52 pm
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    Central VA

Might want to give ERNICr-3 a try. It is probably a better match than 308L.

-Sandow
Red-hot iron, white-hot iron, cold-black iron; an iron taste, an iron smell, and a babel of iron sounds.
-Charles Dickens
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