How can consumers buy quality galvanized steel sheet roll from numerous factories?

Galvanized Steel Sheet Roll in the market can be divided into hot-dipped galvanized steel sheet, electro-galvanized steel sheet, single-sided or double-sided differential thickness galvanized steel sheet, alloy composite galvanized steel sheet, etc. In addition to the above, there are also colored galvanized steel sheets, printed and painted galvanized steel sheets, PVC laminated galvanized steel sheets, etc.

The quality of galvanized steel sheet roll in the market varies, leaving aside the price issue, but how can consumers buy quality galvanized steel rolls from numerous domestic and foreign factories? Here we need to know a standard, that is, what are the performance indicators of galvanized steel sheet roll?

Mechanical Performance Indicators

The first is the mechanical properties of hot-dip galvanized products. Mechanical properties can be defined as product properties that can be confirmed through tensile testing, such as yield strength, tensile strength, elongation, n-value, r-value, etc.

Second, plating performance indicators

The most important performance of hot-dip galvanized products is the plating performance, which mainly refers to the corrosion resistance of the plating and the adhesion performance of the plating. Corrosion resistance includes resistance to salt spray and humidity, while coating adhesion refers to the resistance of the product to coating cracking, peeling, and chalking during processing.

Third, other performance indicators

No one test can match the actual use very well. Another important performance is the surface quality, such as the surface quality of the outer plate of the car and the outer plate of the home appliance. For the automotive industry, it is also very important to control the surface roughness of steel plates. For the definition of surface quality, a few words actually can not be completely explained, the best is not directly in the process of different uses, to be verified first. There are also some instructions for alloyed products or ordinary hot-dip galvanized products there are also cut edges and uncut edges. The uncut edges of the strip are allowed to have tiny zinc cracks and white edges on the edges.