What is Tenifer treatment?
Ferritic nitrocarburizing or FNC, also known by the proprietary names Tenifer, Tufftride and Melonite as well as ARCOR, is a range of proprietary case hardening processes that diffuse nitrogen and carbon into ferrous metals at sub-critical temperatures during a salt bath.
How thick is Melonite coating?
about 10-20 µm thickTreatment durations of 1-2 hours usually yield compound layers about 10-20 µm thick (0.0004 - 0.0008").
Does nitriding add thickness?
During nitriding the volume of the component increases by 3% of the layer thickness.
What is Tufftride heat treatment?
The Tufftride® process of Durferrit is a surface heat treatment Salt Bath Nitrocarburising treatment carried out at around 580°C for relatively short times (30 minutes to 3 hours) which produces a hard wear resistant surface on many steels.
When did Glock stop using Tenifer?
As far as the Glock 19 is concerned, it had always been treated with Tenifer – until 2011, when Glock USA converted to an alternative heat treatment named Melonite. This was done after the EPA voiced concern over the chemicals used in the Tenifer process.
Is Melonite and nitride the same?
Nitride is a treatment to the barrels steel that hardens the steel and significantly increases corrosion and wear resistance. This is usually done in a process called Quench polish quench (QPQ). Melonite is a specific version of Nitride but for the most part Melonite and Nitride are the same.
How hard is nitride coating?
The metallic nitrides are hard and enhance the wear resistance of the surface. This is a well-known process in the heat treatment of steel parts to improve their wear and fatigue resistance. The hardness of the nitrided layer reaches up to 65 Rockwell Hardness (RC) while the substrate hardness is usually around 45 RC.
Can you weld nitrided steel?
Gas nitriding is a surface hardening process where nitrogen is introduced into the surface of a ferrous alloy. During fusion welding of nitrided carbon steel, the nitride inside weld metal is dissolved and generates nitrogen gas, which causes porosities - blow holes and pits.
What steel is nitrided?
Aluminum, chromium, molybdenum, titanium, tungsten, and vanadium easily combine with nitrogen at high temperatures to form nitrides of the respective metals. Low-carbon alloys of steel containing these metals are typically good candidates for nitriding.
What is Melonite Qpq?
Quench polish quench (QPQ) is a specialized type of nitrocarburizing case hardening that increases corrosion resistance. It is sometimes known by the brand name of Tufftride, Tenifer or Melonite.
What is FNC coating?
Ferritic Nitro-Carburizing (FNC) is a thermochemical surface hardening process that involves diffusion of both nitrogen and carbon into the part. This treatment is mainly used to improve wear and fatigue properties and to enhance corrosion resistance. Low-alloy steel parts are suitable for this process.
What is Tuftriding?
Tuftriding. This method is similar to nitriding except that nitrogen and carbon are introduced into the surface of the work piece.This is achieved by heating the part in a molten salt hath for 2—4 hours. The result is a very hard but thinner layer, which is more resistant to shock loading conditions.