Suzhou cold drawn steel in the process will involve many processes, hot rolling and cold rolling are included, change the process on the organization and performance profile is a great influence. In order to better mastery, or have adetailed and comprehensive understanding of the proper comparison. Regardless of the Suzhou cold drawn steelafter hot rolling and cold rolling, has its own characteristics.

1, Suzhou cold drawn steel after hot rolling process

Hot rolling is in casting ingot of tissue damage case, the mechanical properties of steel is improved, and can eliminatesome defects in the microstructure. But the process of steel also has disadvantages, such as after after rolling, nonmetallic inclusion will steel interior is pressed into thin slices, appear statified phenomenon, which will affect theproduct properties along the thickness direction tension. There is a bad phenomenon, is the hot may lead to residualsteel under the uniform cooling caused by stress.

2, Suzhou cold drawn steel after cold rolling

Cold rolling and hot rolling is different, it is at room temperature after the cold, cold, cold drawing processing mode isprocessed into a variety of steel. Using this method, the steel can be made into various sections, to meet production needs of different users. At the same time, can also be a type steel plastic deformation greatly, improve its yield point.However, nothing is perfect, cold rolled steel also has defects, including the presence of residual stress; torsional properties variation; concentrated load capacity is weak and so on.