Galvanized Steel Coil
Delong skillfully manufactures various galvanized steel coils according to industrial needs and business.
- Rust Resilience
- Extended Life Span
- No Maintenance Required
- Easy Inspection
Galvanized Steel Coil Manufacturer in China
Galvanized coil refers to a steel coil coated with a layer of zinc on the surface. Galvanizing is an economical and effective anti-corrosion method that is often used. About half of the world’s zinc production is used in this process. Galvanized steel coil is to prevent corrosion on the surface of the steel coil and prolong its service life. The surface of the steel coil is coated with a layer of metallic zinc. This kind of galvanized steel coil is called galvanized coil.
| Width | 1000mm、1220mm、1250mm、1500mm、1800mm、2000mm, or customized as required |
| Thickness | Cold rolled: 0.3~3.0mm; Hot rolled: 3.0~120mm, or customized as required |
| Standard | ASTM A53-2007, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M-2004, ASTM A523-1996, BS 1387, BS EN10296, BS 6323, BS 6363, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, GB/T9711 |
| Surface | Big spangle, Regular spangle, Minimum spangle, Zero spangle |
| Material | DX51D+Z, DX52D+Z, DX53D+Z, DX54D+Z, S220GD+Z, DX51D+Z/SGCC/A653, etc. |
| Zinc Coating | 40-600g/㎡ |
Galvanized Steel Coil by Grades
Choose the galvanized steel grade you need, for any use, Delong always gives you the best solution.
Surface
Zero Spangle: An additional skin-pass process after the initial galvanization involves carefully applying tension to the steel strip as it passes through rolls. This additional step eliminates the crystalline spangle patterns typically seen on galvanized steel, creating a smooth and matte-like appearance.
Minimized Spangle: This finish has a smaller and less visible crystalline pattern compared to regular spangle. It is often used for applications requiring a more uniform appearance.
Regular Spangle: This is the most common finish, characterized by a visible crystalline pattern on the surface. It is created during the cooling process when the zinc coating solidifies.
Large Spangle: Spangles with a diameter larger than 3mm that can be distinguished by the naked eye are called large spangles. The internationally recognized optimal size is 8~12mm. It is widely used in construction, machinery manufacturing, home appliances and other fields.
Zero Spangle
Mini Spangle
Regular Spangle
Large Spangle
Application
Automotive Industry
Construction
Tubes
Structural Components
Fence
Telecommunications
Roofing
Galvanized Steel Coil Properties
Low-cost
When it comes to protective coatings for stainless steel, galvanization is one of the least expensive options. It requires little to no maintenance, repairs, and/or replacements.
Time-saving
Galvanized coatings are easily examined by eye, and non-destructive thickness testing methods are used. No time is lost in excessive testing. Galvanized structures are ready to go after direct assembly.
Toughest Coating
The intact zinc coating prevents corrosive substances from reaching the underlying steel or iron. The zinc also acts as a sacrificial anode, which is used to protect buried or submerged metal from corrosion.
Sustainable
The galvanization process uses a molten zinc bath in which the zinc can be used over and over again. The durability and longevity of steel building components mean fewer resources will be used to repair or replace parts.
Why Choose Our Galvanized Steel Coil?
Factory: Delong is one of the best-galvanized steel coil suppliers and manufacturers in China, Our galvanized steel coil production line has an annual production capacity of 300,000 tons and a manufacturing speed of 150m/min.
Versatile Applications: Perfect for construction, manufacturing, and more. Whether you need material for roofing, wall panels, or structural components, our coils are up to the task.
Superior Corrosion Resistance: The zinc coating provides a robust barrier against rust and corrosion, extending the lifespan of your projects.
The Art of Galvanization: Production Process
The journey of the GI Galvanized Steel Coil begins with the selection of high-grade steel, known for its tensile strength and ductility. The galvanization process is a meticulous procedure that involves several steps:
Cleaning: The steel is thoroughly cleaned to remove any impurities, oils, or dirt that could compromise the adhesion of the zinc coating.
Pickling: The steel is then immersed in an acid bath to remove any remaining rust or scale.
Annealing: The material is heated to improve its ductility and prepare it for the coating process.
Galvanizing: The steel is dipped into a bath of molten zinc, where it reacts to form a series of zinc-iron alloy layers, topped by a layer of pure zinc.
Finishing: The coated steel is cooled and inspected for quality, ensuring a uniform and durable finish.
This process results in a product that is not only resistant to corrosion but also boasts enhanced mechanical properties, making it suitable for a wide array of applications.
How much does galvanized steel coil cost per pound ?
The price can vary slightly depending on the region. For example, in China, the price of galvanized steel was reported at about 4,840 CNY per metric ton, which is roughly 587.12 USD per metric ton, or about $0.27 per pound. Prices have seen a consistent rise over the past few months due to various factors like production cuts, raw material shortages, and increased consumption from major industries.
What is coil coated galvanized steel ？
Hot Dip Galvanized Steel Coil is produced by passing Cold Rolled Steel Coil through a Molten bath of Zinc at temperatures of around 460 degrees Celsius. The Zinc coating on the steel coil substrate acts as a barrier between the atmosphere and the surface of the metal.
What is the hs code for galvanized steel coil？
The HS code for galvanized coil is 7210900000. This code indicates flat-rolled products of iron or non-alloy steel of a width of 600 mm or more, which have been coated or plated with other materials.
Will galvanized steel coils rust ？
Galvanized steel will corrode and rust, but not until after many years of use, because the impact causes the surface of the material to be scratched too much, causing oxidation on the surface of the material to occur.
