Galvanized square pipes and fixtures should remove foreign matter such as oil, residual salt and paint before heat treatment.

Since its introduction, hot-dip Galvalume steel has been widely used in various industries such as construction and home appliances. Due to the continuous expansion of the scope of use, the product's formability and various properties of the steel sheet have been continuously improved, so the resulting aluminum-zinc steel sheet is superior to hot-dip Galvalume steel in some properties. Let's introduce it to you.

Color steel coil is a kind of composite material, also called color coated steel plate. It is made by using strip steel in the production line to continuously undergo surface degreasing, phosphating and other chemical transfer coatings, and then coated with organic coatings and baked.

The hot rolling of the seamless steel pipe is rolling at a temperature above the crystallization temperature, and conversely, for cold rolling, it is carried out below the crystallization temperature.

Galvanized steel sheet is hot-dip or plated with a layer of metal zinc with a thickness of about 5-12 microns.

Types of galvanized steel

1. Hot-dip galvanized steel sheet

2. alloyed galvanized steel sheet

3. Galvanized steel sheet (also known as electrolytic plate)

4. Single-sided and double-sided galvanized steel

5. Alloy, composite galvanized steel

The aluminum-zinc alloy structure of aluminum-zinc-coated steel coil is composed of 55% aluminum, 43.4% zinc and 1.6% silicon solidified at a high temperature of 600 ° C. The entire structure is composed of aluminum-iron-silicon-zinc, forming a dense quaternary crystal , Thus forming a strong and effective barrier to prevent penetration of corrosion factors