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Old 02-04-2010, 09:49 AM
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Join Date: Jun 2004
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Melonite® salt bath nitriding?


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Several manufacturers use the Melonite® (salt bath nitriding) process on gun parts - for example, S&W's M&P semiautomatic. At least one company offers Meloniting for existing parts, not limited to firearms parts, though. Has anyone experience to share with applying Melonite® nitriding to older gun parts - that is after-market processing?
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Old 02-04-2010, 07:34 PM
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Join Date: Jan 2004
Location: Mesa, Washington
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Melonite, Tenifer, etc. They are all basically different "Brands" of Salt Bath Nitriding, or Nitrocarburizing. A.K.A. a form of case hardening.

I believe the Current company known as H.E.F. owns the Trademarks on both Tenifer and Melonite.
I have had some parts(industrial) Salt Bath Nitrided, for wear resistance. The problem comes from metalurgical properties of dissimilar metals. At least as far as the hardness. If you have one piece that is HARD, and the other not; you have REAL wear issues on the lesser.

I would say that for MOST firearm applications, it is a pretty finish that will look good with use. Short of a $100 item, most likely ONLY a IPSC class shooter would ever wear something out.
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