Steel name: 1 Cr
  Diagram No.: 2298
  Type of diagram: CCT
  BS designation: 1 Cr
  SAE designation: 5145-5150
  Chemical composition in weight %: 0.50% C, 0.75% Mn, 0.35% Si, 0.025% P, 0.020% S,
  1.20% Cr.
  Note: Alloy steel. British steel. Austenitizing temperature: 850^oC (1562^oF).
  Grain size: 6-8.
  Source: M. Atkins, Atlas of Continuous Cooling Transformation Diagrams for Engineering
  Steels, ASM, 1980.

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