A2

UNS #T30102

A2 is an air hardening tool steel capable of being hardened throughout, even in heavy sections. It displays good Balance between hardness and toughness and is used in applications which require extreme accuracy and safety in hardening, and when the sections are heavy. Available as a DeCarb-Free product.

Type Analysis

  • Carbon (Nominal) 1
  • Silicon (Maximum) 0.3
  • Manganese (Maximum) 0.8
  • Chromium (Nominal) 5.25
  • Molybdenum (Nominal) 1.1
  • Iron (Nominal) Balance
  • Vanadium (Nominal) 0.2

Applications

Large blanking dies Thread roller dies Long punches Rolls Master hubs Trimming dies Forming dies Precision tools Gauges Coining dies

Applicable Specifications

  • ASTM A681
  • QQ-T-570

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