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Thread: I did'nt know that nitre bluing was so easy! Check this out!

  1. #1
    Moderator & Team Gunsnet Platinum 07/2011 O.S.O.K.'s Avatar

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    Thumbs up I did'nt know that nitre bluing was so easy! Check this out!

    ~Nemo me impune lacessit~




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    Administrator Krupski's Avatar

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    Quote Originally Posted by O.S.O.K. View Post
    -video-
    The molten salts are at 650 degrees F... wonder what that would do to a heat treated part?
    Gentlemen may prefer Blondes, but Real Men prefer Redheads!

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    Moderator & Team Gunsnet Platinum 07/2011 O.S.O.K.'s Avatar

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    I wondered that too but I think it's below the trouble point - I think you have to get up over 1,000 degrees before you have trouble?

    Pretty sure.
    ~Nemo me impune lacessit~




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    Moderator circuits's Avatar

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    If you held at 650F for more than a minute or two, you'd be drawing down the hardness. Dip and swirl only as long as you must to achieve the correct color.

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    Moderator & Team Gunsnet Platinum 07/2011 O.S.O.K.'s Avatar

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    Ah... thanks. Larry should have mentioned that! Those are all hardened parts...
    ~Nemo me impune lacessit~




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    Administrator Krupski's Avatar

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    Quote Originally Posted by O.S.O.K. View Post
    I wondered that too but I think it's below the trouble point - I think you have to get up over 1,000 degrees before you have trouble?

    Pretty sure.
    Well when the guy in the video said the metal was getting a "straw color" it made me think of what steel does when you heat it a second time after hardening to "draw it out" to the right hardness.

    I have a nice old pistol that is almost in the white from age and wear and that nitre blue looks pretty nice... but I don't want to ruin a heat treated part...
    Gentlemen may prefer Blondes, but Real Men prefer Redheads!

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    Administrator Krupski's Avatar

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    Quote Originally Posted by circuits View Post
    If you held at 650F for more than a minute or two, you'd be drawing down the hardness. Dip and swirl only as long as you must to achieve the correct color.
    Thanks.
    Gentlemen may prefer Blondes, but Real Men prefer Redheads!

  8. #8
    Team Gunsnet SILVER 05/2012 deth502's Avatar

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    not what i was thinking....

  9. #9
    Team Gunsnet SILVER 05/2012 deth502's Avatar

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    this is what i was thinking of, most likely because of the use of nitric acid.

    http://www.assra.com/cgi-bin/yabb/Ya...m=1282132883/0

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