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Corrosion Resistance of 301 HY vs. 301 FH - HelpHelpful Member! 

kenpo (Mechanical)
9 Sep 02 15:27
Does anyone know how 301 Hi-Yield Stainless stacks up against 301 Full Hard Stainless in corrosion resistance? No specific environment. Just a general rule of thumb question. Hi-Yield is basically an extra cold worked version of Full Hard. Higher yield and tensile strength, but the same chemical structure. I should think that the cold working would make the high yield more susceptible to corrosion, but I cannot find any direct literature.

Thanks in advance
Helpful Member!  mcguire (Materials)
9 Sep 02 15:57
With the same chemical composition, the yield strength difference among various tempers of 301 has no influence on corrosion resistance. Be aware that the chrome and nitrogen levels vary in 301 as producers try to tailor work hardening rates, and the lower levels of these two elements will result in marginally lower pitting corrosion resistance.
There will be a markedly increased susceptibilty to stress corrosion cracking as yield strength increases, but pure corrosion resistance is not a function of strength level.

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