Steel name: ORVAR SUPREME and DIEVAR
  Diagram No.: 3417
  Type of diagram: TTT
  Chemical composition in weight %: ORVAR SUPREME: 0.39% C, 1.00% Si, 0.40% Mn,
  5.20% Cr, 1.40% Mo, 0.90% V. DIEVAR: 0.35% C, 0.20% Si, 0.50% Mn, 5.00% Cr,
  2.30% Mo, 0.60% V.
  Note: Hot work tool steel, Bohler-Uddeholm. Experimental and computed temperature at
  centre of block during gas quenching. Computations of ORVAR SUPREME and DIEVAR
  differ during phase transformation.
  Source: A Thuvander, "Numerical Simulation of Gas Quenching of Tool Steels and the
  Influence of Hardenability on Distortion", Swedish Institute for Metals Research, in
  Proceedings of the 6th International Tooling Conference Karlstad, Sweden, 10-13
  September 2002, pp.625-640.

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