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Tom Stovall
 
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Default STAINLESS STEEL Blueing (or blackening)

"my_2¢" wrote:

Does anyone know how to "blue" or blacken stainless steel? I know that
from a cold chemical standpoint a mixture of Selenium Dioxides and
Copper Sulfate is the standard "cold blue" formula for carbon
steel....but how does one darken stainless? With chromium in the steel
the copper method seems useless and an acid preferable....has anyone
used chemical methods in stainless with success? What works?


If you heat 300 series stainless steel to a red, it will turn dark,
almost black, when it cools.
--
Tom Stovall, CJF
Farrier & Blacksmith

http://www.katyforge.com

"I ride a big blue roan, I carry all I own,
In the pouches of my saddlebag, with my bedroll tied behind..."
Mary McCaslin, "Prairie in the Sky"