Ohio Metallurgical Service has been supplying heat treating services since 1947. The company has ISO 9001:2000 certification. It offers various services, such as carburizing, carbonitriding, neutral and vacuum hardening, vacuum annealing, tool steel hardening, atmosphere annealing, stress relieving and part straightening. The company s induction heat treatment department provides a wide range of services, such as automatic straightening, localized tempering and annealing and static heating. Its straightening department offers more than 15 ton manual straightening presses and tight tolerance straightening services. The company additionally has a laboratory that inspects microstructure, case depth and hardness. Ohio Metallurgical Service is located in Elyria, Ohio.