Table 1: The chemical composition of the researched steel. It is a medium carbon 42CrMn6 hot rolled steel.

C (%wt.) Si (%wt.) Mn (%wt.) S (%wt.) P (%wt.) Cr (%wt.) Mo (%wt.) Ti (%wt.) N (%wt.)
0.43 0.4 1.43 0.0135 0.013 1.23 0.1 < 0.05 0.01-0.02