1. Low surface hardness
Compared with hot rolling, cold rolling has greater limitations in surface hardness. During the cold rolling process, the material is subjected to greater extrusion pressure and is affected by delamination and deformation, which makes the surface hardness relatively low. In some industries with high requirements for surface hardness, such as automobile manufacturing and aerospace, cold-rolled products often fail to meet the standards for use.
2. Difficult processing
Cold rolling requires the use of higher pressure, and due to the nature of its materials, cold-rolled products are often prone to surface cracking, cracks, and other quality problems during processing. This will not only make processing difficult but also affect product quality and lead to adverse consequences.
3. High cost
Compared with hot rolling, cold rolling often causes a higher proportion of steel loss. At the same time, the cost of the process and equipment used in cold rolling is also relatively high. These factors have led to the high cost of cold-rolled products, which are not suitable for the manufacture of some low-cost products.
4. Large limitations
Cold rolling is only applicable to some specific types of materials, such as steel. In the processing of other materials, cold rolling often fails to achieve the desired effect. This means that the scope of application of cold rolling is greatly limited.

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