Simply put, the process of rolling stainless steel pipe fittings after heating and controlling them above the recrystallization temperature is called hot rolling. The process of rolling below the recrystallization temperature, including at room temperature, is called cold rolling.
Hot-rolled steel has good plasticity and is easy to form. After forming, the steel has no internal stress, which is convenient for subsequent processing. For example, steel bars for construction, steel plates for stamping, and steel for machining and heat treatment are all hot-rolled steel.
Cold-rolled steel has the characteristic of cold work hardening. Because cold rolling has better mechanical properties, many directly used sheets of steel use cold rolled steels. Such as cold-rolled steel bars, cold-rolled twisted steel bars, cold-rolled steel wire, cold-rolled steel plates, etc.
Post time: Feb-14-2023