S550GD Galvanized Steel
S550GD galvanized steel is a high-strength coated steel developed based on the European Union EN 10346 standard. We supply thicknesses ranging from 0.13mm to 6mm, with a maximum width of 1500mm.
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Specifications
| Product Name | S550GD Galvanized Steel |
| Thickness | 0.13mm – 6mm |
| Width | ≤ 1500mm |
| Length | Cut as required |
| Type | Coil, Sheet(flat sheet, corrugated sheet), Strip |
| Zinc Coating | Z30g/m² – Z275g/m² |
| Surface Structure | Large Spangle, Normal Spangle, Small Spangle, Zero Spangle-Free |
| Standard | EN 10346 |
| Yield strength | ≥ 550MPa |
| Tensile strength | ≥ 560 – 750MPa |
| Processing Services | Slitting, cutting, punching, pressing, embossing, etc. |
| Surface Treatment | Passivation, fingerprint resistance, oiling, etc. |
| Inner Diameter | 508mm or 610mm |
| Weight of Single Coil | 2 – 10 tons |
| Delivery | 7 – 35 days |
| MOQ | 25 tons |
| Packaging | Standard export packaging (plastic film, moisture-proof paper, and galvanized iron sheet) |
S550GD Equivalent Steel
| Standard | EN 10346 | GB/T 2518 | ASTM A653 | JIS G3302 |
| Grade | S550GD | SG550 | SS550 | SG590D |
Chemical Composition
| Chemical elements | C | Si | Mn | P | S | Al |
| Content | ≤0.20% | ≤0.60% | ≤1.70% | ≤0.025% | ≤0.015% | ≥0.020% |
S550GD Meaning
- S (Structural) denotes structural steel.
- 550 indicates a minimum yield strength of 550 MPa.
- G (Galvanized) signifies hot-dip galvanizing.
- D (Ductility) represents the steel’s mechanical properties specified for cold forming.
Benefits of Using S550GD Galvanized Steel
- High yield strength allows for thinner sheets under equivalent stress conditions, reducing structural weight and enhancing bending resistance.
- Beyond pure zinc coatings, options like aluminum-zinc (AZ) and zinc-aluminum-magnesium (ZM) coatings are available to match corrosion resistance requirements across diverse applications.
- Although the initial cost is relatively high, its service life is 3-5 times longer than ordinary galvanized steel, reducing maintenance and refurbishment costs.
Applications of S550GD Galvanized Steel
- New Energy and Infrastructure: Photovoltaic mounting structures (main beams/purlins), communication base station towers, transmission towers, etc.
- Transportation: Truck/trailer chassis and body frames; new energy vehicle battery pack housings; automotive seat frames and bumper beams.
- Industrial & Warehousing: High-strength warehouse shelving, construction machinery, agricultural equipment, large ventilation ducts, and electrical control cabinet manufacturing.
Why Choose Us
1. Our products hold ISO 9001 and CE certifications, while the company maintains multiple accreditations including Trusted Supplier and Contract-Honoring Enterprise, solidifying our reputation as a reliable business.
2. We consistently adhere to rigorous inspection procedures, including testing for zinc coating thickness, dimensional accuracy, corrosion resistance, and mechanical properties, while also supporting third-party inspections.
3. We operate two hot-dip galvanized steel coil production lines and one electrogalvanized steel coil production line, ensuring sufficient capacity to swiftly fulfill large-volume orders.
As a specialized galvanized steel coil manufacturer in China with over 14 years of production and export experience, we consistently uphold integrity as our core business principle. This commitment has earned us loyal customers across numerous countries. Should your project require galvanized steel products, please contact us for further details.
