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topic 29997

Black oxide classification



2004

I'm master of science student and I'm currently working with a project about black oxide. Are there any quantitative (or qualitative) methods to classify properties of the oxide layer like the ability to attach to the steel or the ability to crack?

Grateful for any help!

Maria S [last name deleted for privacy by Editor]
student - Garphyttan, Örebro, Sweden


April 4, 2008

Hi, Maria. We have an FAQ on line here comparing Hot Black Oxide vs. Cold Blackening. The cold blackening is proprietary selenium compounds which you could investigate with the vendors, but true black oxide is a special kind of "rust" and is only millionths of an inch thick, so I don't think adhesion and cracking are ever issues with it. Good luck.

Regards,

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

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