Premier Thermal is a steel and aluminum heat treating company with 10 facilities in the Midwest. Under the name Premier Thermal, we have three divisions, which include: Atmosphere Annealing (steel), Al-Fe (aluminum), and NitroSteel. Our NitroSteel division performs a process called Ferritic Nitrocarborizing (FNC). We use this process on raw steel bar and parts. By diffusing Nitrogen into the steel, FNC creates a protective barrier or "white layer", giving it improved attributes such as: superior corrosion protection, pitting, flaking and wear resistance, and is the environmentally friendly alternative to chrome plating. Our FNC process is the superior alternative to chrome plating.