Vacuum Heat Treating

Achieve the Ultimate Heat Treating Control

Heat Treating is a tightly controlled process, used in most manufactured goods, in which the mechanical or chemical properties of a metal are altered through the application of heat and controlled cooling. In vacuum heat treating, the potentially harmful atmospheric gases are removed by a vacuum pumping system. This process maintains the surface chemistry and appearance of the part, which helps make the metal more suitable for the application in which it will be used. Stack Metallurgical Group provides a wide array of heat-treating processes for our customers, such as: annealing, quenching, precipitation hardening, and stress relieving.

Our vacuum department is state-of-the-art and constantly maintained to ensure peak performance. Our furnaces can process loads up to 8,000 lbs., at temperatures that range from 300 °F to 2200 °F, and gas quenching utilizing either argon or nitrogen as quenchants, at pressures up to 6 bar.

We proudly offer unique cycles to meet our customers needs at an affordable price, ensuring we stay on schedule to meet deadlines that customers in critical industries – such as aerospace and medical need to meet. Want to find out more on how Stack can become your heat-treating partner or just general heat-treating questions? Contact us to find out more information.


Specifications for Heat Treating

AMS 2759
AMS 2759/3
AMS 2759/4
AMS 2759/5
AMS 2759/11
AMS 2773
AMS 2774
BAC 5613
BAC 5617
BAC 5619

Heat Treating Materials


Primary Industries for Heat Treating

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Knife & Tool



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Power Generation

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