Tool Steel (D2)

Grade Introduction:

D3 is a high-carbon, high-chromium steels. Apart from D3 steel all group D steels have 1% Mo and are air hardened. Type D3 steel is oil-quenched; though small sections can be gas quenched after austenitization using vacuum. As a result, tools made with type D3 steel tend to be brittle during hardening.

Supplied Condition:

Hot Rolled

Grade Applications:

Typical Applications, Highly stressed cutting, Punching tools for thin sheets, Shear blades for cutting Profile rolls, Drawing and deep drawing tools, Stone processing tools, Knives for paper and plastics, Shear knives for thin sheets, Deep drawing, Pressure pads, Highly wear-resistant plastic moulds.

Annealing:

D3 is supplied in the annealed and machinable condition. Re-annealing will only be necessary if the steel has been forged or hardened by the toolmaker. To anneal, heat slowly and uniformly to 900°C. Soak for three to four hours and allow to cool in the furnace to room temperature. Re-heat to 800-1040°C and again soak for three to four hours. Allow cooling in the furnace to room temperature.

Equivalent Grades:

Chemical Composition:

Hardness:

N/A