EMBRITTLEMENT RESISTANT STAINLESS STEEL ALLOY

摘要

There is disclosed a new stainless steel alloy called High Purity M152(HP M152) which has all the desired properties of those of the prior art, but has unique resistance to embrittlement. Limiting phosphorus, tin, antimony and arsenic in the stainless steel alloy to a little more than trace amounts provides tremendous reduction in the amount of embrittlement which occurs. Additionally, reduction of the manganese and silicon contents from 0.7 and 0.3, respectively, to about 0.050% provides further benefit. This alloy can be used in steam turbine and jet engine applications, as well as in gas turbines.