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Welding Stainless Steel to Maintain Corrosion Resistance

Welding Stainless Steel to Maintain Corrosion Resistance

Welding Stainless Steel to Maintain Corrosion Resistance

(OP)
What is the history behind limiting heat input to 60kJ/in the welding of stainless steel (TP 304) to prevent sensitization/ maintain corrosion resistance in the as welded condition? Is it related to grain growth or ferrite?

Thank you in advance.

RE: Welding Stainless Steel to Maintain Corrosion Resistance

Browse Special Metals, Outokumpu, and Allegheny Ludlum's websites. There's a ton of stuff out there.

Mike Halloran
Pembroke Pines, FL, USA

RE: Welding Stainless Steel to Maintain Corrosion Resistance

The heat input is limited to reduce sensitization affects, which results in reduced corrosion resistance.

RE: Welding Stainless Steel to Maintain Corrosion Resistance

Along with this remember that you need excellent gas coverage and an overalloyed filler.

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Plymouth Tube

RE: Welding Stainless Steel to Maintain Corrosion Resistance

Reduced carbon (e.g. 304L) helps too.

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