The difference between galvanized steel and cold-rolled steel

The main differences between galvanized steel sheets and cold-rolled sheets are as follows:

Physical Properties:

Galvanized steel sheets: Good corrosion resistance, easy construction, excellent match with high strength and high ductility, has become a high-strength, good formability stamping steel.

Cold-rolled sheets: High hardness, very smooth surface, generally thin sheets, can be used as stamping sheets.

Materials:

Galvanized steel sheets: The main materials are hot-dip galvanized sheets and electrogalvanized sheets.

Cold-rolled sheets: The main material is stamping-grade cold-rolled sheet, and according to production needs, it is also divided into general-purpose cold-rolled sheets, deep-drawing grade, extra-deep-drawing grade, and ultra-deep-drawing grade cold-rolled sheets.

Processing Technology:

Galvanized steel sheets: An alloy product with a layer of zinc plated on the surface of the steel sheet through a galvanizing process.

Cold-rolled sheets: Using hot-rolled coils as raw materials, rolled at room temperature below the recrystallization temperature. The production process usually includes main processes such as raw material preparation, cold rolling, heat treatment, leveling, and finishing.

Application Fields:

Galvanized steel sheets: Due to its good corrosion resistance, it is widely used in applications requiring corrosion resistance, such as construction, home appliances, automobiles, etc.

Cold-rolled sheets: Mostly used in automobile manufacturing, electrical products, and other occasions with high requirements for strength and surface quality.

In summary, galvanized steel sheets and cold-rolled sheets have significant differences in physical properties, materials, processes, and application fields. The choice of sheet material depends on the specific needs and application scenarios.