Processing of medium carbon steel

Processing of medium carbon steel This significantly increases its ability to withstand the stresses of operating components. Heat treatment is used to increase strength and wear resistance. This involves hardening, tempering, and normalizing the steel at temperatures of 655-750°C.⁰ Tempering is performed for 5 hours, followed by cooling and normalization for 10-50 minutes. Tempering, or annealing, modifies the microstructure, significantly increasing the impact toughness coefficient. This is maintained even at lower temperatures, and the strength properties are enhanced.

Also thermal annealing processing of medium-carbon steel Tempering allows for the removal of certain defects introduced during casting, forging, and other hot working processes. Tempering is generally the final heat treatment operation. There are two types of annealing. The first relieves residual stress and lattice deformation, improving the homogeneity of the steel. The second type of annealing is an intermediate operation and, for most large castings, completes the heat treatment.