Galvanized Steel Coils – IBC Metal Group
We are an experienced manufacturing and trading company from China. Specialized in suppling all kinds of galvanized coils. Has served customers from 40+ countries, such as Canada, Turkey, Poland, Iran, Brazil, Ukraine, the Philippines, Malaysia, etc. Compared to famous galvanized steel coil manufacturers, IBC Metal Group offers a more competitive price for the same quality products.
Technical Specifications of Galvanized Steel Coils
Galvanized Steel Coil is a special type of steel coil that has been hot dipped in a zinc coating. To protect it from corrosion and rust. And it gives the steel a shiny, smooth finish. Galvanized steel coils used in wide range of industries, including construction, automotive, solar and other applications where the steel will be exposed to weather or other elements.
Our galvanized steel coils comply with major international standards including ASTM A653, EN 10346, JIS G3302, and GB/T 2518, with available grades such as DX51D, SGCC, S250GD, and SS Grade 340. Grades and specifications can be customized according to customer requirements and equivalent standards.
| Width (mm)： | 50mm ~ 1500mm |
| Thickness (mm): | 0.12 ~ 25mm |
| Zinc Coating(g/m2) | 20 ~ 275g/m2 |
| Coil Weight (Ton) : | 3 ~ 8 Tons |
| ID (mm)： | 508mm/610mm |
Surface Finish & Surface Treatment
To meet the requirements of different applications for corrosion resistance and surface quality, IBC supply galvanized steel coils with various surface appearances and surface treatment options, ensuring stable performance in forming, coating and long-term service life.
Spangle Type: Regular Spangle, Minimized Spangle, Zero Spangle,etc.
Surface Treatment: Chromated, Oiled / Dry, etc.
You could choose combination among them. Or other methods according to your requirements. And the surface quality level of galvanized coils we provided are FA, FB and FC. Most clients choose FB and FC.
Chemical Composition & Mechanical Properties
The galvanized steel coil is produced from low-carbon steel substrate with controlled chemical composition and balanced mechanical properties, providing excellent form ability, strength, and structural reliability.
| Element | C | Mn | P | S | Si | Al |
|---|---|---|---|---|---|---|
| Content (%) | ≤0.12 | ≤0.60 | ≤0.10 | ≤0.045 | ≤0.50 | ≥ 0.02 |
Note: Actual composition may vary according to steel grade and applicable standards (ASTM, EN, JIS, GB, etc.).
| Property | Value |
|---|---|
| Yield Strength | 140 – 260 MPa |
| Tensile Strength | 270 – 500 MPa |
| Elongation (A80) | ≥ 22 % |
| Hardness | ≤ 70 HRB (typical) |
Note: Mechanical properties may vary depending on steel grade, thickness, heat treatment and coating process.
Manufacturing Process of Galvanized Steel Coil
The production and manufacturing process of galvanized steel coils can be divided into three steps. First, the entire steel coil is pickled to remove rust and dirt, so that the surface of the galvanized steel strip becomes bright and clean. After pickling, the coil is successively washed in an aqueous solution of ammonium chloride, zinc chloride, or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent into the hot-dip galvanizing bath for zinc coating. After galvanizing is completed, the coils can be packaged and stored in the warehouse.
The hot dip process includes passing the steel through a molten zinc bath, and the electro galvanizing process includes applying zinc through electrolytic treatment. As a result, the zinc layer is firmly adhered to the base metal through the iron-zinc bonding layer. So it is better than steel. That’s why we choose galvanized steel coils.
Applications
Galvanized Steel Coil is widely used in various industries due to its excellent corrosion resistance, good formability, and stable mechanical properties. Typical applications include:
- Roofing & Wall Panels
Used for roofing sheets and wall cladding systems, offering long service life and strong anti-corrosion performance. - Corrugated Sheets
Widely applied in industrial buildings, warehouses, workshops, and temporary constructions. - HVAC Ducts
Suitable for air conditioning and ventilation duct systems with good corrosion resistance and processing performance. - Automotive Panels & Parts
Used for automotive body panels and structural components, meeting strength and anti-rust requirements. - Home Appliance Shells
Applied to outer shells and structural parts of refrigerators, washing machines, air conditioners, etc., with stable surface quality and good paintability. - Steel Structures & Light Steel Components
Used for purlins, brackets, light steel frames, and other construction components.
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