Call Today: (877) 471-0840 International: (248) 437-2497 Home Services Capabilities Quality Control Request A Quote Careers Terms Contact Us Capabilities 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, 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. Steels Treated Applicable Processes S-Series Shock Resisting Salt Bath Hardening, Vacuum Hardening, Steam Treating, Ionitriding®, IonWear® O-Series Oil Hardening Salt Bath Hardening, Ionitriding®, IonWear® A-Series Air Hardening, Medium Alloy Vacuum Hardening, Steam Treating, Ionitriding®, IonWear® D-Series Cold Work, High Chromium Vacuum Hardening, Steam Treating, Ionitriding®, IonWear® H-Series Hot Work, Chromium Vacuum Hardening, Steam Treating, Ionitriding®, IonWear® T-Series High Speed, Tungsten Vacuum Hardening, Steam Treating, Ionitriding®, IonWear® M-Series High Speed, Molybdenum Vacuum Hardening, Steam Treating, Ionitriding®, IonWear® L-Series Special Purpose, Low Alloy Salt Bath Hardening, Ionitriding®, IonWear® PM-Series Powder Metal Steam Treating, Ionitriding®, IonWear® 4000/5000-Series Alloyed Steels Salt Bath Hardening, Steam Treating, Ionitriding®, IonWear® Nitralloy 135 Nitriding Steel Salt Bath Hardening,Ionitriding®, IonWear® P-Series Mold, Plastic Injection Salt Bath Hardening, Ionitriding®, IonWear® NAK 55 Mold Steels Ionitriding®, IonWear® Cast Iron Gray, Ductile, Malleable (Auto Dies & Components) Salt Bath Hardening, Ionitriding®, IonWear® Cast Steel Medium Alloyed (Auto Dies & Components) Salt Bath Hardening, Ionitriding®, IonWear® Stainless Steel 200/300-Series Austenitic Vacuum Hardening 400-Series Martensitic Vacuum Hardening PH & 600-Series Precipitation Hardening Vacuum Hardening CA/CN-Series Cast Vacuum Hardening **Partial list of steels treated. Please contact Sun Steel Treating Inc. for full list. Sun Steel Treating, Inc. 550 N. Mill Street, Box 759 South Lyon, MI 48178 US Find us on Google Maps Phone: (877) 471-0840 Fax: (248) 437-3140 International: (248) 437-2497 Quality Control & Certifications © 2021 Sun Steel Treating, Inc. & Online Connexions. All rights Reserved. Home Terms and Conditions Contact