| D2 Cold Work Tool Steel
Technical Data Sheet
D2 is a high carbon, high chromium, air-hardening tool steel. It was formulated to combine excellent abrasion resistance and air-hardening characteristics. D2 has become the tool and die standard against which other tool steels are measured for abrasion resistance, dimensional stability in hardening and air-hardening characteristics.
TYPICAL CHEMISTRY:C 1.55 Mo 0.80 Cr 11.50 V 0.90
MACHINABILITY: When properly annealed, A2 has a machinability rating of 60 as compared with a 1% Carbon Steel rated at 100.
Dimensional stability : D2 has the minimum distortion in heat treatment as compared to other tool steels. When air quenched from the proper hardening temperature, this grade can be expected to expand or contract approximately .0005 in. per in. Note: Distortion (bending, bowing and twisting) as well as part geometry can add to the variations in movement of a part being hardened.
THERMAL CYCLING: In order to avoid decarburization, this grade should be annealed and/or hardened in a controlled neutral atmosphere, vacuum or neutral salt furnace environment.
The values shown in this data sheet are to be used as a guide for estimating purposes only.
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