Steel name: H21 Tool Steel
  Diagram No.: 2553
  Type of diagram: TTT
  Chemical composition in weight %: 0.28% C, 3.25% Cr, 0.25% V, 9.00% W.
  Note: Tool steel. Austenitizing temperature: 1150 ^oC (2100 ^oF).
  Source: Data Sheet, Crucible Steel Co. of America, March 1948, as published in
  Atlas of Isothermal Transformation and Cooling Transformation Diagrams, ASM, 1977.

  Price: 25.00 US $
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