What is the difference between galvanized sheet and cold-rolled sheet?

Galvanized sheets and cold-rolled sheets are relatively common plates in production and life, so what is the difference between galvanized sheets and cold-rolled sheets? Today Powerson will tell you about the difference between cold-rolled sheets and galvanized sheet. I hope it can bring help to everyone, interested friends can like and collect! 

First, what galvanized sheet and cold-rolled sheet? 

Galvanized sheet: Galvanized sheet refers to a steel sheet with a layer of zinc plated on the surface. Galvanizing is a cost-effective method of corrosion protection that is often used, and half of the world’s zinc production is used for this process. 

Cold rolled plate: Cold rolled plate is a product obtained by cold pressing processing of hot rolled sheet. Due to repeated rolling, its surface quality is better than that of hot-rolled sheet, and after heat treatment, good mechanical properties can be obtained. 

Second, what is the difference between cold-rolled sheet and galvanized sheet? 

1, the plate is different First of all, the basic material of cold rolled plate and galvanized sheet is different, ordinary cold rolled plate goes through multiple bumps of cold rolling, and the quality of the surface is better than hot rolled sheet, after treatment produces good mechanical properties. The galvanized sheet is relatively hard, it is the material zinc plated on the surface of the metal, so their material is completely different. Galvanized sheet: hot-dip galvanized steel sheet, electro-galvanized steel sheet. Cold-rolled plate: generally used cold-rolled plate, stamping grade cold-rolled plate, deep drawing, extra deep drawing, and ultra-deep drawing grade cold rolled plate.

 2. There is also a difference between the physical properties of galvanized sheet and cold-rolled sheet, Galvanized sheet: with high strength and ductility, has become a kind of stamping steel with high strength and good formability. Galvanized sheet is more heat-resistant, the quality of the surface is better, and it is more economical and practical. Cold-rolled plate: high strength, high hardness, high surface finish, generally a thin plate, can be used as a stamping plate. The tensile force of cold-rolled plate is relatively good, and the drawing performance far exceeds that of galvanized sheet. 

3. The surface physical characteristics of cold-rolled sheets and galvanized sheets are also different. Galvanized sheet is divided into white and black, although their hardness is similar, their performance is driven by a very different distance. 

4. Generally, galvanized sheet will not be treated again after use, and cold-rolled sheet also needs to do a layer of paint on the surface after use, otherwise, the cold-rolled sheet will oxidize, and galvanized sheet is less easy to be oxidized than cold-rolled sheet. 

5. The process between cold-rolled sheet and galvanized sheet is different 

Galvanized sheet: Galvanized sheet is an alloy product made by plating a layer of zinc on the surface of the steel plate by galvanizing process. 

Cold rolled plate: Cold rolled coil is hot rolled as raw material, and its production process usually goes through raw material preparation, cold rolling, heat treatment, leveling, and finishing. In the process of making cold-rolled sheets, the surface quality is relatively good, and the finish is relatively high, which can meet some special requirements, while the galvanized sheet is made of steel plate, which is relatively economical. 

Xuzhou Powerson Metal Technology Co., Ltd. main steel products including color coated steel plate, printed steel plate, galvanized steel plate, galvanized steel plate, cold rolled plate, etc., the company’s product manufacturing process chain is complete, relying on Lai Steel, Ji Steel’s high-quality cold coil SPCC, the production of high-precision high-quality galvanized coil, aluminized zinc coil, color coated coil, corrugated plate, and other products, and actively according to market demand research and development and production of emerging building materials products. Welcome to inquire!