Austempering

Steels, etc. are Austempered after quenching (to obtain bainite)
The results show that the lower bainite is obtained to enhance the strength, hardness, toughness, wear resistance and plasticity of the steel; the deformation is small, the hardness is high and the toughness is good; after austempering, it is generally unnecessary to temper; while the low carbon steel shot is obtained after austempering, and the low carbon steel shot is generally bainite structure.

• Used masks cause serious environmental pollution.
• Quenching and martensite