Steel name: 0.87% C-V
  Diagram No.: 4859
  Type of diagram: TTT
  Chemical composition in weight %: 0.87% C, 0.32% Mn, 0.27% Si, 0.005% S, 0.020% P,
  3.99% Cr, 0.11% Ni, 0.80% Mo, 2.52% V, 11.91% W
  Steel group: Tool and die steel, vanadium steel
  Note: a.) Preheat 850^oC for 20 minutes, austenised at 1210^oC quenched for 120 seconds.
  b.) Preheat 850^oC for 20 minutes, austenised at 1270^oC quenched for 120 seconds.
  Source: Atlas zur Warmebehandlung der Stahle, Max-Plank Institut fur Eisenforschung, 1958,
  as published in Atlas of Continuous Cooling Transformation Diagrams for Vanadium Steels,
  Vanitec, England, June 1985

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