What is a Tenifer finish?

What is a Tenifer finish?

Tenifer and Melonite are trade names for firearm finishing processes that involve salt bath nitriding. Historically, firearm parts were black oxided, which is an oxidation process which is only a few millionths of an inch thick, does not offer much corrosion resistance, and doesn’t alter the underlying steel.

Is Melonite a good finish?

Unlike some other finishes and treatments, Melonite® has a predictable and consistent outcome that significantly strengthens the surfaces of carbon steel, stainless steel, alloy steel, and austenitic steel products. It can also be highly effective when used for cast iron and sintered iron, as well.

What is Tenifer process?

The TENIFER process (TF1) is a salt bath nitrocarburizing of components in molten salt at temperatures around 580° C. Besides the addition of nitrogen, carbon also always diffuses into the surface in every TF1 treatment. An oxidising follow-up treatment in a so-called AB1 bath can improve the corrosion resistance (Q).

Does Glock still use Tenifer?

I think the answer yes and no, Tenifer is a “brand name”. Glocks are still treated using a Nitration process, very much like (if not the same) as Tenifer.

What is Melonite steel?

Melonite® is a thermochemical treatment for improving the surface properties of steel parts. It exhibits predictable and repeatable results in the treating of low and medium carbon steels, alloy steels, stainless and austenitic steels, tool and die steels, cast and sintered iron.

Is Melonite a nitride?

Faxon typically uses the terms “nitride” and “QPQ” to refer to how our barrels are processed. “Melonite,” “Isonite,” etc are all branding terms for various similar nitride processes. Typically, these will each have a small tweak compared to the other, but they are largely the same in terms of performance.

What is FNC coating?

FNC Coating Mix® is a specially formulated reagent that dramatically increases the attachment of cells to the plastic substratum used for culturing mammalian cell lines. Increased cell attachment facilitates and encourages growth in adherent cell cultures.

What’s the difference between 4140 and 4150 barrels?

One of the more common barrel materials is 4140 and 4150. These common steels are very similar and only have slight differences. The 4140 AR barrel steel has the “41” for the first two numbers.

How are Tenifer and Melonite metal treatments different?

Tenifer and Melonite use the same process, but slightly different chemicals and temperatures. Melonite treatment is known to be the simpler of the processes. The process starts by creating a salt bath of alkali cyanate in a steel vessel. The steel vessel has a pipe that creates bubbles and aerates the salt bath.

Can you use Melonite on 416 stainless steel?

Melonite can be used on such steel grades as 416 stainless and 4140. However, it has the disadvantage of actually removing some of the properties of 416 stainless steel. The melonite process also produces a black finish instead of the gray color of Tenifer.

What’s the difference between Tenifer salt bath and Melonite salt bath?

The only difference in the “Tenifer” process and “Melonite” is the brand name. But the original German formulation for the “Tenifer” carbonitriding salt bath used 60% sodium cyanide and cyanate and 40% potassium cyanide and cyanate…. That’s why the EPA wouldn’t let anyone do it here.