We've turned the science of heat treating into an art form.™  

Vacuum Hardening/Tempering/Annealing

National Metal Processing

About the process:

Process uses low atmospheric pressure instead of a protective gas atmosphere. Suitable for tool and die and stainless steel work.



  • Prevents surface reactions (scaling and decarburization)
  • Can be used to add a surface layer to parts
  • Can be used to remove surface contaminants
  • Process does not require furnace conditioning or carbon potential control of prepared atmospheres



  • Ipsen 100-lb. capacity, 2-bar rapid quenching capability.