Steel name: 2-1/4Cr-1% Mo Steel
  Diagram No.: 2824
  Type of diagram: TTP
  Chemical composition in weight %: 0.15% C, 0.50% Mn, 0.18% Si, 0.018% P, 0.012% S,
  0.165% Ni, 2.12% Cr, 0.94% Mo, 0.077% Cu 0.009% Sn.
  Note: Precipitation diagram. Precipitation during aging (tempering). Austenitizing
  temperature: 960^oC (1760^oF) for 2 h. Diagram showing the sequence of carbide
  formation on tempering the quenched steel. Treatmnet: After austenitizing, half the
  specimens were cooled at 300^oC (570^oF) per hour to room temperature, and the
  remainder were quenched in oil. Tempering treatments were carried out in a lead bath
  at 400, 500 and 600^oC (740, 930 and 1110^oF) and in an electric air furnace at 650,
  700 and 750^oC (1220, 1290 and 1380^oF). See the diagram No. 2825 and No. 2824.
  Source: R.G. Baker, J. Nutting, "The Tempering 2-1/4Cr-1% Mo Steel after Quenching and
  Normalizing", Journal of The Iron and Steel Institute, Vol.192, July 1959, p.257.

  Price: 30.00 US $
  Buy Online

  We sell's software, not a steels

  Hardenability diagrams of steels
  Tempering diagrams of steels