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"Passivation for AISI 316L stainless steel and ASTMF75 medical devices"



2000

We manufacture orthopedic implants like hips, knees and plates. The hips and plates are manufactured from austenitic stainless steel type AISI 316L or ASTM F138 [affil. link to spec at Techstreet] and the knees are manufacture from alloy ASTM F75. We need to do chemical passivation to the stems once they are finished but don't know the best method. I request how to passivate them and the best methods recommended for medical devices.

Pablo R. Carbonell
IMPLANTES FICO S.R.L. - Villa Ballester, Buenos Aires, Argentina
^


2001

I would recommend medical electropolish to passivate your parts. It will free the base alloy of any impurities and create a biocompatible surface. Also it will add to the cosmetics of the part.

Donna Nowak
Electrolizing of Ohio - Cleveland, Ohio USA
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