1.01C-0.49Co, 1.15C-0.98Co Steels

Steel name: 1.01C-0.49Co, 1.15C-0.98Co
Diagram No.: 3585
Type of diagram: CCT
Chemical composition in weight %:
Steel A: 1.01% C, 0.20% Si, 0.48% Mn, 0.004% P, 0.002% S, 0.49% Co, <0.01% Cu
Steel B: 1.15% C, 0.23% Si, 0.52% Mn, 0.008% P, 0.003% S, 0.98% Co, <0.01% Cu
Steel group: Alloy steels
Note: CCT diagram of steels A and B. Austenitized at 950oC for 10 min. The Acm and Ms temperatures were changed due to the difference in carbon content. It is well known that the hardenability of low plain carbon steel is lower than that of eutectoid steel due to the proeutectoid reaction. However, the critical cooling rates for steels A and B are very similar to that of the of eutectoid steel.
Reference: Not shown in this demo version.

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