A-6 Tool Steel
Chemical Composition

 Carbon (C) - .65/.75
 Manganese (Mn) - 1.80/2.50
 Silicon (Si) - .50 max
 Tungsten (W) -
 Molybdenum (Mo) - .90/1.40
 Chromium (Cr) - .90/1.20
 Vanadium (V) -
 Cobalt (Co) -
 *Nickel (Ni) - .30 max

*Unless otherwise specified, Nickel plus Copper equal 0.75% max. for all tool steel types
A-6 tool steel 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.
Typical Uses
Typical uses of A6 Tool Steel:
  • Chuck Jaws
  • Precision Tools
  • Forming Dies
  • Coining Dies
  • Master Hubs
  • Shear Blades
  • Plastic Molds
  • Spindles
  • Mandrels and Heavy Duty Punches
  • Blanking Dies
  • Plastic Injection Molding Dies
  • Shear Knives
  • Trim Dies

A-6 Non-Deforming Tool Steel

Alro stocks A6 tool steel, an air-hardening, non-deforming tool steel that combines the deep hardening characteristics of air-hardening steels with the simplicity of low temperature heat treatment possible in many of the oil-hardening grades of steel.

About A6 Tool Steel

A6 is a medium-alloy tool steel that is noted for being able to be through hardened during low austenitizing temperatures that are typically used with oil-hardening tool steel grades.
Other Characteristics of A6 Tool Steel Include:
Excellent Dimensional Stability
Good Toughness
Maintains Dimensional Stability during heat treatment
Wear resistance lies between Grade O1 Oil-Hardening Tool Steel and Grade D2 High-Carbon, High Chromium Tool Steel