G550 has the highest strength, followed by G350 and G300. Galvanized steel coils are coated with a layer of zinc to protect them from corrosion, and G550 has the highest level of corrosion resistance among these grades. G300 has better formability compared to G350 and G550.

G300 G350 G550 Galvanized Steel Coil For Sale

G300 G350 G550 Galvanized Steel Coil Price

Galvanized Steel Coil Factory in Stock

Zinc Coating Thickness Measurement

As a galvanized steel supplier in China, at Metal in China® you can have more choices of spangle size, including large spangle, regular spangle, small spangle and zero spangle. You can also contact us to get free samples of various spangled galvanized steel sheets.

G300, G350, and G550 are different grades of galvanized steel coils with varying levels of strength and durability. The manufacturing process for these coils is similar to that of other galvanized steel coils. It typically involves cleaning the surface of the steel coil to remove any dirt, oil, or other contaminants, followed by a pickling process to remove any mill scale or oxide that may have formed on the surface.

After pickling, the steel coil is immersed in a bath of molten zinc, which adheres to the surface of the steel to create a layer of zinc coating. The thickness of the zinc coating can vary depending on the grade of the steel coil and the intended application. The coated steel coil is then cooled and passed through a leveling process to ensure that the surface is flat and uniform.

The manufacturing technology used for G300, G350, and G550 galvanized steel coils is typically similar, with variations in the thickness of the zinc coating and other properties to suit different applications.

G300, G350, and G550 galvanized steel coils are widely used in various industries for their excellent properties, including high strength, durability, corrosion resistance, and formability. Some common applications of these galvanized steel coils include:

1. Construction: Galvanized steel coils are used for various construction purposes, such as roofing, walls, frames, and support structures, due to their strength and durability.
2. Automotive industry: These galvanized steel coils are used in the automotive industry for manufacturing car bodies, frames, and other structural components due to their high strength and formability.
3. Electrical industry: Galvanized steel coils are used in the electrical industry for manufacturing electrical cabinets, transformers, and other components, as they provide excellent corrosion resistance.
4. Furniture: These galvanized steel coils are used in furniture manufacturing for producing chairs, tables, and other metal furniture due to their strength and durability.
5. Agriculture: Galvanized steel coils are used in the agriculture industry for manufacturing farm equipment, such as silos, barns, and sheds, as they are resistant to rust and corrosion.
6. Appliances: These galvanized steel coils are used in the manufacturing of various appliances, such as refrigerators, washing machines, and dryers, due to their strength and durability.
7. Packaging: Galvanized steel coils are used in the packaging industry for manufacturing metal cans, drums, and other containers due to their strength and corrosion resistance.

Galvanized steel coils are typically packaged in a way that ensures their safety and protection during shipping and storage. Galvanized steel coils are typically shipped in coils with a weight of 3-5 tons. The coils are wrapped in a waterproof paper and then covered with a steel sheet to protect against damage during transportation. Galvanized steel coils may also be shipped in containers. The coils are loaded into the container and secured with steel bands to prevent movement during transportation. The container is then sealed and shipped to the destination.

Regular Spangle Galvanized Steel Coil Factory

Regular Spangle Galvanized Steel Coil Stock

Regular Spangle Galvanized Steel Coil Stock in China