Letter 13020

Does ASTM A967 Practice D apply to age hardened 17-4 ph stainless steel? 

Does ASTM A-967 [link is to info about spec at TechStreet] Practice D-Copper Sulfate Test apply to martensitic 17-4 ph stainless steel in the aged condition? I have passivated these parts per ASTM A A380 [link is to info about spec at TechStreet] Code F. I'm assuming this spec does not apply because the parts are in the matensitic condition, but I'm not 100% sure, please advise.

Thanks,

Shawn McKinney
- Myerstown, PA, USA

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