0.27C-1Cr Steel

Steel name: 0.27C-1Cr Steel
Diagram No.: 3498
Type of diagram: TTT
Chemical composition in weight %:
Steel 1: 0.11% C, 0.27% Si, 2.10% Mn, 0.27% Ni, 0.27% Cr, 0.077% V, 0.014% Ti, 0.022% Al, 0.01% S, 0.011% P.
Steel 2: 0.12% C, 0.28% Si, 2.12% Mn, 0.26% Ni, 0.31% Cr, 0.085% V, 0.027% Ti, 0.041% Al, 0.002% S, 0.007% P, 0.12% Ce.
Steel 3: 0.27% C, 0.86% Si, 0.65% Mn, 1.23% Cr, 0.012% S, 0.009% P.
Steel 4: 0.28% C, 0.86% Si, 0.65% Mn, 1.10% Cr, 0.010% S, 0.007% P, 0.17% RE.
Steel 5: 0.20% C, 0.14% Si, 1.02% Mn, 0.015% S, 0.033% P.
Steel 6: 0.23% C, 0.17% Si, 1.07% Mn, 0.014% S, 0.024% P, 0.087% RE.
Steel 7: 0.25% C, 0.20% Si, 1.12% Mn, 0.014% S, 0.041% P, 0.16% RE.
Steel 8: 0.21% C, 0.18% Si, 1.09% Mn, 0.012% S, 0.025% P, 0.24% RE
Steel group: Low carbon steel.
Note: Isothermal transformation curves at 600 and 450oC in steels 3 and 4. See the diagrams No. 3497 and No. 3499.
Reference: T. Y. Hsu (Xu Zuyao), "Effects of Rare Earth Element on Isothermal and Martensitic Transformations in Low Carbon Steels", ISIJ International, Vol, 38 (1998), No. 11, pp. 1153-1164.

Transformation Diagram


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