Specialty Steel Treating, Inc., was established in 1956 by Donald G. Cox. SST services numerous industries including but not limited to aerospace, rail, and automotive. We manufacture difficult aerospace part configurations with precision. Some of the steel heat treatment services we provide include: carburizing, carbo-nitriding, nitriding, neutral hardening, normalizing and vacuum carburizing. You can trust that you are getting high-quality products from us.