The cryogenic process is a continuation of the heat treatment process which ends at room temperature. The aim is to maintain the martensitic transformation by decreasing to low temperatures and reducing the austenitic amount as much as possible. Cryogenic treatment is performed in specially designed processor controlled chambers.

Change of Wear Life Increase in Cryogenic Steels;

Five different tool steels subjected to heat treatment were subjected to abrasive wear test after sub-zero treatment and cryogenic treatment. Table 1 contains these test results. The subzero process improved the abrasion resistance of steels from 18% to 104%, but the test results in cryogenic treated steels showed an improvement of 105% to 560%.

Stange control system for cooling and heating,
Minimum heat losses due to vacuum insulated body and cover structure,
Double walled retort structure,
Recipe recording insfrastructure,
Pressure and flow control and minimum nitrogen cosumption,
Repeatable processes,
Stainless steel construction,
Unique and intelligent design,
Dimensions suitable for vacuum quenching furnaces,
+5oC temperature uniformty,
Safe pressure relief and safety valve before cover opening,
Gas nitrogen atmosphere during the tempering process,
No corrosion effect and color change during processing.

Maximum pressure: 2 bar

Working pressure: 100-500 mbar

Operating temperature: from -150oC TO +250OC

Optional: On heating 620oC