Steel name: 20 NC 6
  Diagram No.: 1723
  Type of diagram: TTT
  Mat. No. (Wr. Nr.): 1.5920
  DIN: 18CrNi8
  AFNOR NC: 20 NC 6
  Chemical composition in weight %: 0.19% C, 0.55% Mn, 0.30% Si, 0.010% S, 0.018% P
  1.52% Ni, 0.81% Cr, <0.10% Mo, 0.20% Cu, <0.030% V.
  Note: Alloy special structural steels. Austenitizing temperature: 850 ^oC (1562 ^oF) for
  30 min. Grain size: 10-11.
  Ac₁: 740 ^oC, Ac₃: 820 ^oC, Ms: 375 ^oC.
  Source: Courbes de Transformation des Aciers de Fabrication Francaise, IRSID, Paris,
  France, 1974.

  Price: 25.00 US $
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