To help you succeed in an increasingly competitive business environment, Sun Steel Treating offers its expertise in commercial heat treating. These applications would include Ionitriding®, vacuum hardening, salt bath heat treating, steam treating, multiple surface treatments, and straightening processes.

Having been a commercial heat treater since 1958, Sun Steel Treating has the expertise, capacity and the quality control technology needed to provide you with the finest, most comprehensive, and environmentally responsible heat treating and surface treatment processes in the world.

At our main facility in South Lyon, west of Detroit, we have invested heavily in the most technologically advanced equipment for processing your parts – most of which have been designed and built by Sun Steel Treating.

Our pledge: Exceptional quality, expertise and timeliness.