20Mn2Cr, 20Mn2CrNb Steels

Steel name: 20Mn2Cr, 20Mn2CrNb
Diagram No.: 7830
Type of diagram: CCT
DIN designation: 20Mn2Cr, 20Mn2CrNb
Chemical composition in weight %:
Mn2Cr steel: 0.21% C, 0.04% Si, 1.69% Mn, 0.007% P, 0.005% S, 1.30% Cr, 0.009% Nb, 0.002% Ti, 0.0098% N
Mn2CrNb steel: 0.21% C, 0.03% Si, 1.21% Mn, 0.007% P, 0.003% S, 1.21% Cr, 0.034% Nb, 0.010% Ti, 0.012% N
Steel group: High strength steels
Note: Austenitizing temperature: 980 C, holding time: 3 min. Continuous cooling transform (CCT) curves of (a) 20Mn2Cr and (b) 20Mn2CrNb steels.
Reference: Not shown in this demo version.

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