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Galvanized Steel Sheet 4×8
Galvanized Steel Sheet 4×8
Galvanized Steel Sheet 4×8 refers to a zinc-coated steel sheet measuring 4 ft × 8 ft (about 1.22 m × 2.44 m), a common standard size used in the metalworking and construction industries. Typical thicknesses range from 0.12 mm to 4.0 mm (roughly gauge 30 to gauge 7), making it suitable for various engineering and custom fabrication applications.
Made from cold-rolled base steel and coated with hot-dip galvanizing, the product provides excellent corrosion resistance and structural strength. Compared to non-standard sizes, the 4×8 galvanized steel sheet is easier to transport, reduces material waste, and is popular in global markets. It is especially suitable for applications like roofing panels, fences, air ducts, wall cladding, appliance housings, and tool enclosures. The sheet supports welding, punching, bending, and decoiling processes.
ZHAOJIAN offer a wide range of material grades, including DX51D, DX52D, S220GD, S350GD, and more, meeting needs from general use to high-strength structures.
Made from cold-rolled base steel and coated with hot-dip galvanizing, the product provides excellent corrosion resistance and structural strength. Compared to non-standard sizes, the 4×8 galvanized steel sheet is easier to transport, reduces material waste, and is popular in global markets. It is especially suitable for applications like roofing panels, fences, air ducts, wall cladding, appliance housings, and tool enclosures. The sheet supports welding, punching, bending, and decoiling processes.
ZHAOJIAN offer a wide range of material grades, including DX51D, DX52D, S220GD, S350GD, and more, meeting needs from general use to high-strength structures.
Product Specifications
| Dimension Name | Value |
| Thickness | 0.12mm – 4.0mm (approximately gauge 30 to gauge 7); (customizable) |
| Length*Width | 4 ft × 8 ft （1220 mm × 2440 mm） |
| Zinc Coating (G/M²) | Z10 – Z275 (Typical: Z30, Z60, Z100, Z275) |
| Spangle Type | Regular Spangle / Zero Spangle / Large Spangle (customizable) |
| Surface Finish | Bright / Matte / Chromated / Non-chromated; Dry / Oiled |
| Base Material | Cold Rolled Steel (Full Hard / Hard / Soft options available) |
| Edge Type | Mill Edge / Slit Edge |
| Tensile Strength | 270 – 550 MPa (depending on grade) |
| Yield Strength | 140 – 350 MPa |
| Elongation | ≥ 22% (varies by grade and thickness) |
| Chemical Composition (ASTM A653/A1011 – Common grades: DX51D, A36) | C: 0.05–0.25%, Mn: 0.30–0.60%, P ≤ 0.04%, S ≤ 0.05% |
| Chemical Composition (JIS G3302 / G3101 – Common grades: SGCC, SS400) | C ≤ 0.25%, Mn ≤ 1.50%, P ≤ 0.035%, S ≤ 0.035% |
| Available Standards | ASTM A653, A36, A1011, A569, JIS G3302, EN 10346, GB/T 2518 |
| Available Grades | DX51D, DX52D, DX53D, S220GD, S250GD, S280GD, S350GD, SGCC, SS400, Q235, S235JR |
| Certificate | ISO9001, CE, SGS, RoHS, BV, SONCAP (depending on batch) |
| Tolerance | Thickness: ±1%; Width: ±2mm; Length: ±5mm |
| Skin Pass | Yes (to improve flatness and surface quality) |
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More Details
Key Advantages
- Universal Standard Size
Measures approximately 4 ft by 8 ft (around 1.22 m by 2.44 m), a globally recognized size commonly used in construction, fabrication, and packaging industries.
- High Material Utilization
Pre-cut sizes minimize offcuts and waste during fabrication—ideal for maximizing full-sheet usage in manufacturing and site work.
- Optimized for Transport and Storage
Fits perfectly in standard shipping pallets and containers (20GP/40HC), improving stacking efficiency, loading speed, and reducing freight costs.
- Ideal for Inventory and Quick Turnaround
Its fixed dimensions make it easy to stock and dispatch without custom cutting or extra handling time—perfect for urgent or repeat orders.
- Compatible with Industry Equipment and Templates
Many molds, frames, and production lines are designed around 4×8 sheets, which improves compatibility, shortens machine adjustment times, and boosts production efficiency.
Applications for 4x8 Galvanized Sheets
- Roofing and Wall Panels
Matches standard stud or frame spacing; eliminates the need for joint overlaps or multiple cuts.
- Concrete Formwork Panels
Serves as a steel face layer for wooden or composite formwork systems—reduces surface wear and extends the form’s lifespan.
- Appliance and Equipment Back Panels
Perfect for cutting multiple small parts from a single sheet, especially in batch processing or custom fabrication.
- Temporary Fencing and Site Hoarding
One 4×8 sheet equals one fence panel—fast installation with clean, uniform appearance.
- Pallet Lining and Industrial Packaging
Fits directly onto standard pallet bases; adds strength and corrosion protection for international shipments.
Production Process
- Precision Cut-to-Length from Galvanized Coil
Sheets are cut directly from master coils to 1.22 × 2.44 meters using high-speed flying shear lines for consistent, clean edges.
- Leveling and Flatness Control
Post-cut sheets are leveled to ensure flatness, preventing warping or edge lift during installation or stamping.
- Export-Ready Packaging
Sheets are bundled in fixed-size stacks with corner protectors, waterproof wrapping, and steel strapping—ready for global shipment.
