DuBois offers liquid carburizing solutions capable of achieving case depths up to 0.100 inches, and liquid nitriding solutions to provide thinner case depths needed for high speed tool steels. Nitriding is a surface hardening process in which nitrogen atoms are diffused into the surface of ferrous materials at sub-critical temperatures and react with the base metal to form a hard, wear resistant, and fatigue resistant nitrided case below the surface. Liquid nitriding is one of the many hardening services offered by Specialty Steel. MELONITE®, TUFFTRIDE® and ARCOR® are all liquid nitrocarburizing processes, and trademarks of the HEF Group (TS USA and HEF USA are US subsidiaries). The heat requirements for liquid are lower than for the gas technique, and the hardened compound on the surface of the component is thicker. Liquid Nitriding Salt bath nitriding / liquid nitriding is a subcritical surface enhancement process holding the longest track record of success over any case hardening technology. Nitriding is a thermochemical surface treatment process generally used for treating ferrous/austenitic alloys by introducing atomic nitrogen into the ferrite phase at a wide range of temperature (340–590 ° … Liquid pressure nitriding is a process in which anhydrous ammonia is introduced into a cyanide-cyanate bath. Liquid Nitriding also provides the best combination of wear and corrosion protection and the shortest processing times. True heat treating processes operate at higher temperatures, and transform the crystal structure of the steel to produce the desired mechanical properties. Liquid Nitriding is not a coating or plating: it is a diffusion process that modifies/transforms the surface of the treated component. MELONITE® and TUFTRIDE® are identical processes – the former term is prevalent in North America, and the latter term in the rest of the world. Contact us at (248) 478-5900 to discuss your requirements. Liquid Nitriding Salt Services or nitriding in a molten salt bath employs the same temperature range as gas nitriding, which is 510 to 580°C liquid nitriding is a sub-critical casehardening process which increases surface hardness for a ferrous components. The nitrogen combines with the iron to form an iron-nitride compound layer that provides improved surface properties; e.g. A composition for nitrocarburizing stainless steel parts and a method for producing a nitride or hard case on such parts using the composition, are provided. Salt baths presents dangers to the environment and to the personal safety of the operators. Chromium has a high affinity for nitrogen and slows diffusion, thereby limiting the achievable case depth. This form of heat treating is well documented in showing consistent case depths throughout the entire surface area of … Besides, the process has few advantages, quick heating of the work piece being the only one worth mentioning. When the nitrogen ions bombard the part they heat up the … Liquid Nitriding achieves results by means of a chemical reaction (at temperatures lower than conventional heat treatment) that leads to the formation of a hard nitride compound on the surface of the component. In many cases, it is being used as an alternative method for surface heat treatment process such as hardening, hard chrome plating with equivalent or better properties. The material that contributes nitrogen to the gas method is the toxic chemical ammonia. Liquid Nitriding is often referred to as a heat treatment; but, this is technically incorrect. Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. 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