Galvanized Steel Coil
Looking for trusted S550GD galvanized steel coil suppliers in China? You've come to the right place. As a direct factory with 20 years of structural steel experience, GNEE Steel supplies EN 10346 compliant S550GD Galvanized Steel Coil at factory prices. In this guide, we'll update the 2026 latest price list and help you calculate the total landing cost including freight and customs.
Galvanized Steel Coil
S550GD galvanized steel coil is a high-strength structural steel product with a hot-dip zinc coating. It belongs to the EN 10346 standard series, designed for load-bearing applications requiring corrosion resistance.
Common galvanized steel grades include S280GD, S350GD, S420GD, and S550GD. Among them, S550GD has the highest yield strength, making it ideal for construction, infrastructure, and heavy machinery manufacturing.
Key Applications of S550GD Galvanized Steel Coil
S550GD galvanized steel coil's unique properties make it suitable for diverse industries:
- Building Construction: Used for roof panels, wall cladding, and steel framing. The galvanized coating prevents rust in outdoor or humid environments.
- Infrastructure Projects: Ideal for highway guardrails, transmission towers, and bridge components. Its high strength withstands heavy loads and harsh weather.
- Machinery Manufacturing: Applied in agricultural equipment shells and construction machinery frames. Offers durability against mechanical wear.
- Automotive Industry: Used for truck body parts and trailer components, where strength and corrosion resistance are critical.
Chemical Composition of S550GD Galvanized Steel Coil
The chemical composition of S550GD Galvanized Steel Coil determines its mechanical performance. Below is the standard composition per EN 10346:
| Element | Content (Max, %) | Function |
|---|---|---|
| Carbon (C) | 0.18 | Enhances strength without reducing weldability |
| Manganese (Mn) | 2.00 | Improves tensile strength and formability |
| Silicon (Si) | 0.50 | Aids deoxidation and boosts corrosion resistance |
| Phosphorus (P) | 0.030 | Controlled to avoid brittleness |
| Sulfur (S) | 0.025 | Minimized to improve surface quality and weldability |
| Aluminum (Al) | 0.020 | Ensures fine grain structure for better toughness |
Mechanical Properties of S550GD Galvanized Steel Coil
Understanding the mechanical properties is essential for application selection. The table below outlines key properties of S550GD Galvanized Steel Coil:
| Property | Standard Value | Test Condition |
|---|---|---|
| Yield Strength (ReH) | ≥550 MPa | Room temperature |
| Tensile Strength (Rm) | 600-730 MPa | Room temperature |
| Elongation (A80mm) | ≥12% | After galvanization |
| Impact Energy (KV) | ≥27 J | At -40°C |
| Bend Test | Pass | 180° bend, no cracking |
Standard Sizes of S550GD Galvanized Steel Coil
GNEE Steel offers S550GD Galvanized Steel Coil in standard sizes to meet project needs:
| Thickness | Width Range | Inner Diameter | Coil Weight | Zinc Coating Weight |
|---|---|---|---|---|
| 0.8mm - 3.0mm | 900mm - 1250mm | 508mm | 5-15 tons | 60-180 g/m² |
| 3.1mm - 6.0mm | 1000mm - 1500mm | 508mm | 8-20 tons | 80-220 g/m² |
| 6.1mm - 12.0mm | 1250mm - 1800mm | 508mm | 10-25 tons | 100-275 g/m² |
2026 Price of S550GD Galvanized Steel Coil
The 2026 price of S550GD Galvanized Steel Coil at GNEE Steel is competitive and transparent:
- Base Price Range: $880 - $980 per ton (ex-factory, standard thickness 0.8-3.0mm)
- Price Influencing Factors:
Thickness: Thicker coils (over 6.0mm) add 12-18% to the base price
Coating Weight: Heavy-duty coating (200+ g/m²) increases cost by 5-8%
Order Quantity: Bulk orders (50+ tons) qualify for 6-9% discounts
Delivery Time: Rush orders (within 7 days) incur 10% premium
S550GD Galvanized Steel Coil is a high-performance solution for structural applications requiring strength and corrosion resistance. GNEE Steel's direct factory supply ensures quality products at competitive 2026 prices, with flexible sizing options. Whether you need standard or custom specifications, our 20 years of experience guarantee reliable products and service. Click here to contact GNEE Steel and get a personalized quotation for S550GD Galvanized Steel Coil today!
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Galvanized Steel Coil