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Anonymous Poster

Blackening parts is rustable?

04/02/2009 3:29 AM

I have a basic doubt . Is blackening component is rustable. shaft material is mild steel or En series material.

What is the real requirement of the blackening operation?
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mike k
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#1

Re: Blackening parts is rustable?

05/13/2009 1:48 AM

You may be talking about blueing, the process of changing the color of steel. As far as I know, phosphoric acid is used, look it up. It does not stop rusting.

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sb
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#2

Re: Blackening parts is rustable?

05/13/2009 2:16 AM

I think he is talking about black oxidised. It is veru mildly corrosion resistant.

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