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Bob Swinney
 
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Default STAINLESS STEEL Blueing (or blackening)

Kinda makes you wonder why stainless steel firearms are usu. left bright,
doesn't it?

Bob Swinney
"my_2¢" wrote in message
...
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?


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