Steel name: 55Si7
  Diagram No.: 3663
  Type of diagram: CCT
  Chemical composition in weight %: 0.56% C, 1.90% Si, 0.84% Mn, 0.11% Ni, 0.19% Cr.
  Note: Spring steel. Calculated diagram. Austenitized at 1172 ^oK.
  Source: Oak Ridge National Laboratory – Metals and Ceramics Division, On-line
  Calculations, http://engm01.ms.ornl.gov/TTTCCTPlots.html, 1997.

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