Sulfide Stress Cracking

The martensitic stainless steels are especially susceptible to sulfide stress cracking. Welds are difficult to soften with heat treatment and are, therefore, susceptible to cracking. Low carbon grades, like Type 410S, are used to
limit weld zone hardness.

This cracking is prevented by controlling weld strength and hardness. These requirements are covered by PVM-MS-4748.

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