0.3C-1Mn-4Cr-0.3V-1Mn Steel

Steel name: 0.3C-1Mn-4Cr-0.3V-1Mn
Diagram No.: 3989
Type of diagram: TTT
Chemical composition in weight %: 0.28% C, 1.00% Mn, 4.20% Cr, 0.34% V, 1.10% Mo, 0.067% Al, 0.0161% N, 0.031% P, 0.011% S
Steel group: Structural steels
Note: Calculated TTT diagram. TTT diagrams have been predicted using a model based on the chemistry of the metal. These diagrams provide information regarding the beginning and end of transformation into stable and metastable phases. The calculated diagram for ESR1 steel is shown in bellow figure. From this figure, it can be seen that AC1b temperature is about 825C and martensite start transformation (Ms) temperature is above 300C. Fast cooling below Ms temperature should result in martensitic transformation. Relatively slower cooling may result in a mixture of bainite and martensite. The AC3 temperature of this steel is expected to be about 975C, similar to 15CDV6 steel.
Reference: Not shown in this demo version.

Transformation Diagram

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