D2 Flat Ground,is an air-hardening, high carbon , high chromium tool steel with extremely high wear resisting properties. It is a very deep hardening steel and will be practically free from size change after proper treatment. The high percentage of chromium gives it mild corrosion resisting properties in the harden condition. D2 Flat Ground is ground to a surface finish of up to 35Ra on six sides and is free from defects and decarburization. Sold in annealed state to be heat-treated.
Rockwell Hardness*
60-62C
Corrosion Resistance
Medium
Machinability
Low
Depth of Hardening
Deep
Weldability
Difficult
Grindability
Wear Resistance
High
Distortion in Heat Treating
Overall Toughness
Decarburization Resistance
Strength
Resistance to Heat Softening
* Can be hardened up to Rockwell C62Data provided for references only and is not warranted.