D-2 Tool Steel
Chemical Composition
Carbon (C)             1.40/1.60
Manganese (Mn)     .60 max
Silicon (Si)              .60 max
Tungsten (W)          N/A
Molybdenum (Mo)  .70/1.20
Chromium (Cr)       11.00/13.00
Vanadium (V)       1.10 max
Cobalt (Co)           1.00 max
*Nickel (Ni)            .30 max
* Unless otherwise specified, nickel plus copper equal 0.75% max. for all tool steel types
Properties

D-2 is typically bought to meet chemistry requirements rather than physical requirements. For that reason, physical properties are generally not provided unless requested prior to production. Any material can be sent to a third party after production to be tested for physical properties.

General Characteristics of D-2 Tool Steel Include:

 

  • Extremely high wear resistance
  • Low machinability
  • Low grinding ability
  • High carbon steel
  • Virtually free from size change after treatment
  • High percentage of chromium
Typical Uses

D2 tool steel can be used to create a variety of parts. Typical applications include:

  • Blanking Dies
  • Forming Dies
  • Coining Dies
  • Slitting Cutters
  • Heading Tools
  • Long Punches
  • Forming Rolls
  • Edging Rolls
  • Master Tools
  • Drawing Dies
  • Shear Blades
  • Gauges

D-2 Tool Steel | High Carbon Tool Steel | Alro Steel

What is D2 Tool Steel?

D2 tool steel 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 hardened condition. It has low machinability and grindability, with a medium resistance to decarburization. D2 is commonly used in long production, cold work applications, high wear applications and it is very popular as a knife blade steel.

D2 tool steel is also available in precision milled Super Square, which can be 2, 4, or 6 side precision milled. Our Super Square is milled to customer tolerances and delivered quickly for your convenience. Alro Steel is also able to grind tool steel with a rotary grinding machine for a fast turnaround, with reciprocal grinding for an even smoother finish. 

Alro Stocks D2 Tool Steel In The Following Shapes

  • Flat
  • Plate
  • Round
  • Square