What are the main types of substrates produced by color steel coils?

There are many types of substrates produced by color steel coils, mainly including the following types:

1. Cold-rolled substrate: Made from hot-rolled strip steel through a complex cold-rolling process. The thickness of this substrate is generally between 0.15mm and 1.5mm. It has excellent flatness and dimensional accuracy and is suitable for manufacturing higher-precision color steel plates.

2. Hot-dip galvanized substrate: made of cold-rolled strip steel as raw material through a continuous hot-dip galvanizing process. The surface of this substrate has a layer of zinc, which has good anti-corrosion properties and flatness, and is suitable for manufacturing general color steel plates. Hot-dip galvanized substrates are divided into ordinary hot-dip galvanizing and alloyed hot-dip galvanizing. The former is mainly used in situations with general anti-corrosion requirements, while the latter is used in situations with higher anti-corrosion requirements.

3. Electro-galvanized substrate: Made from cold-rolled strip steel through a continuous electro-galvanizing process. The surface of this substrate has a zinc layer, which has good anti-corrosion performance and flatness, and is suitable for manufacturing color steel plates with higher requirements.

4. Aluminum-magnesium alloy substrate: Made of aluminum alloy as raw material through continuous extrusion process. This kind of substrate has light weight, high strength and good corrosion resistance, and is suitable for manufacturing high-performance color steel plates.