Our atmosphere pit furnaces enable us to vertically process long slender parts such as knives, shear blades, machine ways, and shafts thus minimizing distortion and reducing the straightening required.

Materials that can be processed include:

• Air hardening and oil hardening tool steels such as A-2, A-8, D-2,S-5,S-7,
• H-13 and O-1.
• Medium carbon alloy steels such as 4130, 4140, and 4340.
• Low carbon grades such as 1018, 8620 or 9310 which can be carburized and either hardened or slow cooled for further processing.

Two furnaces are available for vertically processing long, slender parts. One with a 18in. dia.x 124 in. capacity and one with a 24 in. dia.x 53 in. capacity.

Longer air hardening tool steel parts can be processed horizontally in our 185in. muffle furnace.

Unfortunately the above furnaces are not capable of running materials such as high speed steel that require temperatures over 1900°F.

Precision straightening is available to complement the above hardening capabilities.