The difference between hot rolling and cold drawing of A53 steel

The difference between hot rolling and cold drawing of A53 steel is the difference in production process. The hot rolling of A53 steel is processed at high temperature, which will not change the structural properties of the metal. The cold drawing of A53 steel is to perforate the round steel at high temperature, then it is cold-drawn on the extruder. In the state of no tempering, such processing will affect the crystal structure of A53 steel.

In general, the mechanical properties of A53 steel in the hot-rolled state are better than those of cold-rolled steel, and the tensile strength, yield strength, plasticity and toughness of A53 steel will be improved after heat treatment.

In addition, the heat treatment of A53 steel can eliminate residual stress, while cold rolling may produce residual stress due to the uneven deformation of A53 steel during processing. This residual stress has a great influence on the stability of A53 steel.