M2 High Speed Steel

UNS T11302 tool_steel
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Tungsten-molybdenum high-speed steel with high red hardness and wear resistance. The most commonly used HSS for cutting tools worldwide.

Applicable Standards

  • ASTM A600
  • AMS 2300
  • DIN 1.3343
  • JIS SKH51

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Fe 80.0 86.0 ~83.0
W 5.5 6.75 ~6.12
Mo 4.5 5.5 ~5.0
Cr 3.75 4.5 ~4.12
V 1.75 2.2 ~1.98
C 0.78 0.88 ~0.83
Fe 80.0–86.0% W 5.5–6.75% Mo 4.5–5.5% Cr 3.75–4.5% V 1.75–2.2% C 0.78–0.88%

Typical Applications

  • Twist drills and end mills
  • Milling cutters
  • Taps and dies
  • Gear cutting tools
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