A2 Drill Rod
Chemical Composition
 Carbon - .95%-1.05%
 Manganese - 1.00% Max
 Silicon - .50% Max
 Molybdenum - .90%-1.40%
 Chromium - 4.75%-5.50%
 Vanadium - .15%-.50%
 *Nickel - 0.30% Max

* Unless otherwise specified, nickel plus copper equal 0.75% max. for all tool steel types.
A-2 Tool Steel Drill Rod 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
  • Large Blanking Dies
  • Thread Roller Dies
  • Long Punches
  • Rolls
  • Master Hubs
  • Trimming Dies
  • Forming Dies
  • Precision Tools, Gauges
  • Coining Dies
  • Extrusion Dies
  • Mandrels
  • Shear Blades
  • Slitters

A2 Drill Rod - Air-Hardening Tool Steel

AISI A2 Tool Steel Drill Rod is an air-hardening tool steel that contains five percent (5%) chromium. The chromium in drill rod replaces the oil hardening (O1 type). A2 Drill Rod is ideal for applications where safer hardening, less distortion and increased wear-resistance are required. A2 Drill Rods are ground to a surface finish of at least 40 micro inches and supplied in an annealed condition. Drill Rods are free of decarburization and defects.

About A2 Grade

A2 Drill Rod is part of the family of steel materials called tool steel. Grade A2 provides an intermediate grade between the oil hardening (O1 tool steel) and the high carbon, high chromium (D2 tool steel) types.
Notable Characteristics of A2 Drill Rod include:
  • Good machine-ability
  • High compression strength
  • Very good non-deforming properties
  • Deep hardening
  • High dimensional stability after hardening and tempering
Learn more about all the Tool Steel Grades and Sizes by visiting our page about Tool Steel Bars