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topic 17003

Cost hard chrome vs. zinc


2002

The price of hard chrome coating compared with zinc is low or high? What percentage % ?

Thanks,

Mario Rodríguez
- Chihuahua, Mexico


First of three simultaneous responses--2002

Hard chrome is much more expensive than zinc. But I'm scratching my head what application both could possibly be suited for. Please tell us what you have in mind, Mario.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
finishing.com - Pine Beach, New Jersey
Striving to live Aloha


Second of three simultaneous responses-- 2002

Cannot really compare. cost of zinc depends upon passivation required cost of Hard chrome depends upon thickness, finish, any related operation like grinding etc.

So cannot really compare as one is for corrosion resistance and other for wear resistance.

Still, a wild guess: HC maybe 50- 100 times exp than zinc

vikram
- INDIA


Third of three simultaneous responses-- 2002

The two processes are not equivalent or comparable and your question reveals that this may be unknown territory for you. People with a background in plating practice would not consider one as a substitute for the other. Both are plating processes but the properties of the deposit, equipment required, toxicity and protection to worker and environment are very different.

Guillermo Marrufo
Monterrey, NL, Mexico





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