Stainless steel plates are divided into two types: cold-rolled plates (referred to as 2B plates) and hot-rolled plates (referred to as NO.1). So what's the difference?
The surface is different: the cold-rolled plate is cold-rolled and has no oxide scale on the surface, and the surface is bright and smooth; the hot-rolled plate is hot-rolled and has oxide scale on the surface, and the surface is tungsten and white, and it is an industrial plate.
The hardness is different: cold rolling is softer and hot rolling is harder. Cold rolling has better ductility, stretchability and flatness than hot rolling.
Prices are different: The price of cold-rolled plates is higher than that of hot-rolled plates.
Different specifications: the conventional thickness of cold-rolled plates is 0.3mm~6.0mm, with a maximum thickness of 6.0mm; the conventional thickness of hot-rolled plates starts from 3.0mm, with no upper limit; the conventional width of cold-rolled plates is 1219mm, 1000mm, 1500mm, 1800mm, 2000mm; hot-rolled plates The conventional plate widths are 1500mm, 1800mm, and 2000mm, and non-standard widths of hot-rolled plates can also be customized.
Different uses: cold-rolled plates are thinner and are often used for decoration, gutters, tiles, various mechanical equipment bodies, etc.; hot-rolled plates are mostly used in industry.

The difference between stainless steel cold-rolled plates and stainless steel hot-rolled plates is that cold rolling is based on hot rolling.

Hot Rolling: Compared with cold rolling, cold rolling is rolling performed below the recrystallization temperature, while hot rolling is rolling performed above the recrystallization temperature.
Its characteristics:
1. Poor toughness and surface smoothness, low price;
2. The temperature of hot rolling is similar to that of forging;
3. The hot plate is hot-rolled and has oxide scale on the surface, and the plate thickness varies;
4. Due to its production and manufacturing technology, it is widely used in civilian applications, such as tableware, kitchen utensils, general household appliances, etc.;
5. The mechanical properties of hot-rolled steel plates are far inferior to those of cold processing and inferior to forging processing, but they have better toughness and ductility.

Cold Rolling: It is processed and rolled on the basis of hot-rolled stainless steel plates and coils. Generally speaking, it is a process of hot rolling → pickling → cold rolling. Although the steel plate will heat up due to rolling during the processing, it is still called cold rolling. Since hot rolling undergoes continuous cold deformation, cold rolling has poor mechanical properties and too high hardness. It must be annealed to restore its mechanical properties. Those without annealing are called hard rolled coils. Hard rolled coils are generally used to make products that do not require bending or stretching.
Its characteristics:
1. Due to a certain degree of work hardening, cold-rolled steel plates have low toughness and are more expensive;
2. There is no oxide scale on the cold rolled surface and the quality is good;
3. Products made by cold deformation have high dimensional accuracy and good surface quality;
4. Cold rolling is widely used in various industries due to its production process, such as various cold stamping parts, cold rolled and cold extruded profiles, cold rolled springs, cold drawn wire rods, cold heading bolts, etc.

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