Chemical Composition of C45: C45 steel is a medium carbon steel offering moderate tensile strengths. C45 steel material is capable of throughout hardening by quenching. The following substances are frequently found in C45 material, also known as 1.0503 or EN 10083-2 C45 steel : Carbon (C): 0.42 to 0.50 percent Silicon (Si) 0.15% to 0.35% Manganese (Mn): 0.50–0.80 percent Phosphorus(P) Maximum 0.045%…