Alro Steel was established in 1948 by Al and Robert Glick and has grown to include Alro Plastics, Alro Industrial Supply and Alro Metals Outlet.

A-11 Tool Steel

A-11 Tool Steel
Chemical Composition

 Carbon - 2.45%
 Manganese - 0.50%
 Chromium - 5.25%
 Molybdenum - 1.30%
 Vanadium - 9.75%
 Silicon - 0.90%
 Sulfur - 0.07%

A-11 Tool Steel, a High Vanadium Steel

AISI A11 Tool Steel is a high vanadium and high carbon content steel. These additions provide A11 with exceptionally good wear resistance, toughness and strength for cold work tooling applications. A-11 Tool Steel grade falls between the oil hardening and the high carbon, high chromium (D2 tool steel) types. It is most often used to make hand tools and machine dies.
A11 Tool Steel characteristics include:
Good machineability
High compression strength
Very good non-deforming properties
Deep hardening
High dimensional stability after hardening and tempering

About A11 Tool Steel

Tool steel is generally well-suited for manufacturing tools of various kinds that are used in a heat-treated state giving it increased hardness. Tool steels are manufactured under carefully controlled conditions to ensure the required quality is achieved. Overall tool steal has an improved response to heat treatment and it can easily be ground.

Other Grades of Tool Steel

In addition to A11, Tool steel is offered in a variety of other grades. Each grade provides a difference in characteristics.
A - Air Hardening
D - High carbon, high chromium
H - Hot-Working
O - Oil Hardening
S - Shock Resisting
W - Water Hardening

A-11 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
  • Blanking Dies
  • Cold Extrusion Liners
  • Forming Dies
  • Nozzles and Screw Tips
  • Plastic Injection Molding
  • Cold Extrusion Dies
  • Pelletizer Blades
  • Plastic Injection Molds
  • Trim Dies
  • Wear Inserts
  • Powder Compaction Dies and Pins
  • Shear Blades
  • Slitter Knives
  • Steel Mill Rolls
  • Woodworking Tools