Different production processing

Stainless steel hot rolling is rolled above the recrystallization temperature of the metal material, and stainless steel cold rolling is rolled below the recrystallization temperature of the metal material. Every metal material on the market has its recrystallization temperature.

If it’s hard to understand the above expression, we can change it in other words. Hot rolling means that the material needs to be heated during the steel rolling process or before the steel rolling, generally heated above the recrystallization temperature(such as 1000 degrees). However cold rolling means that the material doesn’t need to be heated during the steel rolling process or heated to below the recrystallization temperature of the material. Cold rolling has more processing processes in stainless steel than hot rolling. It is made of hot-rolled material as the return material with a cold-rolling mill.

Different finished product presentation

The most obvious and simple difference between hot-rolled and cold-rolled is the superficial difference.

Hot-rolled stainless steel is relatively rough with mostly rolling thickness of 3.0mm or above 3.0mm. Compared with cold-rolled products, hot-rolled products often have lower dimensional accuracy and the surface quality is poorer than cold-rolling. And the heat treatment isn’t as good as cold rolling in processing performance. Cold rolling is rolled with hot rolling as raw material. Generally, cold-rolled thin plates have higher dimensional accuracy so that the surface quality and the post-processing performance are better. The thickness range is basically below 5.0mm. The common thickness range is 0.05 mm~3.0 mm. If you want other thickness outside 0.05mm-3.0mm is available.