High Quality SGCC S350GD S550GD Galvanized Steel Coil with Z30-Z275 Zinc Coating for Superior Corrosion Resistance
Price:
Negotiable
MOQ:
10 Ton
Delivery Time:
Negotiable
Brand:
Gnee
Product Description
High-Quality SGCC S350GD S550GD DX51D GI Coil Z30-Z275 Galvanized Steel
Galvanized steel coil undergoes surface galvanizing treatment where a protective zinc layer is applied to the substrate (cold-rolled or hot-rolled steel plate). This process significantly enhances corrosion resistance and extends service life. The two primary galvanizing methods are hot-dip galvanizing (providing thicker, more protective zinc layers) and electroplating galvanizing.
Key Advantages of Galvanized Steel
- Superior Corrosion Resistance: Zinc's reactive properties create a protective oxide film, extending service life to 10-50 years—far exceeding ordinary steel plates
- Cost-Effective Protection: Lower cost than stainless steel or alloy alternatives while significantly improving durability and reducing maintenance expenses
- Excellent Processability: Suitable for cutting, bending, welding, and various fabrication processes
- High Strength & Lightweight: Available in various substrate strengths from low-carbon to high-strength steel options
- Aesthetic Appeal: Silver-gray zinc coating provides clean, attractive finish ideal for exposed applications
- Environmental Sustainability: 100% recyclable material with zinc as a reusable resource
Available Steel Grades & Specifications
All products ensure certified weight and support third-party testing
| Steel Grade | Coating | Yield (MPA) | Tensile (MPA) | Elongation (%) |
|---|---|---|---|---|
| DX51D | Z,ZF | -- | 270-500 | 20 |
| DX52D | Z,ZF | 140-300 | 270-420 | 22 |
| DX53D | Z,ZF | 140-260 | 270-380 | 26 |
| DX54D | Z,ZF | 140-220 | 270-350 | 30 |
| S220GD | Z,ZF | 220 | 300 | 18 |
| S250GD | Z,ZF | 250 | 330 | 17 |
| S280GD | Z,ZF | 280 | 360 | 16 |
| S320GD | Z,ZF | 320 | 390 | 15 |
| S350GD | Z,ZF | 350 | 420 | 14 |
| S400GD | Z,ZF | 400 | 470 | -- |
| S450GD | Z,ZF | 450 | 530 | -- |
| S500GD | Z,ZF | 500 | 560 | -- |
Select the appropriate galvanized steel type based on your specific application requirements and performance needs.
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Get in Touch
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Company
Gnee Steel (tianjin) Co., Ltd.
Location
FLAT/RM 1512 15/F LUCKY CENTRE NO.165-171 WAN CHAI ROAD WAN CHAI HK
Contact Person
Kelly Zhang