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  1. vajra78

    Plasma Nitriding and 304 Tubbing pitting

    I am having a problem with pitting about .001 to .002 deep on commercial grade 304 tubbing, 4"OD X .375" wall, appearing after a plasma nitriding process. I have plasma nitriding done on a barrel I make from 17-4 but only get light pitting maybe about .0005 deep at the most. The engineer at the...

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