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topic 10839

Hard Chroming Stainless Steel


 

Hello,

Can anyone please advise if it is worth hard chroming a stainless steel valve stem (shaft). I have been told that hard chroming will provide lower coefficient of friction, harder wearing surface and less scale adhesion.

Is this true for stainless steel also or just for plain carbon steels?

Any advice would be appreciated

Thanks,

Paul Smithter
- Memphis, Tennessee


 

It's true but omits the additional advantage of freedom from galling.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey


 

Why don't you have the stainless item electropolished? If it is a 300 series stainless, the resulting surface will be chromium-enriched after electropolish, and the smooth surface will reduce the coefficient of friction.

Dale Woika
Surface Conversion Sciences - Bellefonte, Pennsylvania, USA



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