Steel name: C-Mn Steel
  Diagram No.: 2679
  Type of diagram: CCT
  Chemical composition in weight %: 0.11% C, 1.99% Mn, 0.29% Si, 0.012% P, 0.009% S.
  Note: Structural steel. Austenitizing temperature: 1200^oC (2192^oF) for 10 min.
  PF-polygonal ferrite, P-pearlite, AF-acicular ferrite, B-bainite, PP-pseudopearlite,
  M^2nd-martensite second phase, M_s-transformation start temperature of martensite,
  M^'_s-transformation start temperature of martensite second phase.
  See the diagrams No. 2676, No. 2677 and No. 2678.
  Source: Jye-Long Lee, et al., "Transformation Processes and Products for C-Mn Steels
  during Continuous Cooling", Materials Science and Technology, Vol.5, July 1989,
  p.674-681.

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