Cryogenics are processes where the products are treated at a temperature below zero degrees Celsius. The treatment can be an additional step in the hardening process to reach optimal results in hardness and structure of the material or can be part of an aging process.
After hardening it may be required to quench materials below 0°C. The required temperature depends on the grade of steel that is used. At our facilities we have capabilities to cool down up to -160°C. This process can also be used to age specific materials.