D2 is an air-hardening, high carbon, high chromium tool steel, heat treatable to HRC 60-62. Decarb Free Rounds are produced oversize on diameter to finish to listed size.

Material: Tool Steel
Shape: Round Rod
Alloy: D2
Temper: Annealed
Diameter: 0.500 (1/2 inch)
Finish: Decarb Free
Specifications: ASTM 681, AISI D2
Tolerances: Diameter: (+0.005 to +0.015) | Length: -0/+0.999)