Galvanized Steel Coil
Gengfei Steel supplies high-quality galvanized steel coils (GI, GL, PPGI, PPGL) with excellent corrosion resistance, uniform zinc coating, and reliable performance. Available in various thicknesses and widths, our galvanized coils are ideal for roofing, construction, automotive, and appliance industries. Eco-friendly and fully recyclable, they offer cost-effective protection and long-lasting durability for diverse applications.
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Description
Galvanized Steel Coil Supplier – Gengfei Steel
Gengfei Steel is a trusted galvanized steel coil supplier based in China, serving global industries with high-quality and cost-effective galvanized coil solutions. With strong production capacity, strict quality control, and fast delivery capabilities, we support manufacturing, construction, automotive, and other industries worldwide.
Technical Specifications of Galvanized Steel Coil
| Item | Specification |
|---|---|
| Zinc Coating | 30–275g/m² |
| Thickness Range | 0.12mm – 3.0mm |
| Width Range | 600mm – 1500mm |
| Coil Weight | 3 – 10 tons |
| Coil ID | 508mm / 610mm |
| Surface Finish | Regular Spangle, Zero Spangle, Big Spangle |
| Steel Grade | DX51D, DX52D, DX53D, SGCC, ASTM A653 |
| Standard | ASTM, JIS, EN, ISO |
| Coating Method | Hot-dip Galvanizing |
| Packing | Standard Export Seaworthy Packing |
Applications by Coil Type
| Type | Typical Applications |
|---|---|
| GI Coil | Roofing sheets, wall panels, ventilation ducts, household appliances |
| GL Coil | Solar panels, marine structures, automotive body panels |
| PPGI Coil | Construction facades, advertising boards, garage doors |
| PPGL Coil | Prefabricated buildings, sandwich panels, fences, siding |
Key Features of GI Coil
Corrosion Resistance: Excellent performance even in humid or corrosive environments
Eco-Friendly & Recyclable: Galvanized coils are 100% recyclable with low environmental impact
Long Service Life: Zinc coating significantly extends product lifespan
Good Paintability: Suitable for further coating or painting
Strong Adhesion: Zinc layer tightly bonded to base steel
Cost-Effective: Long-term cost savings compared to non-coated steel
Production Process of Galvanized Steel Coil
Cold Rolled Steel Base Preparation
Cleaning and Annealing
Hot-Dip Galvanizing in Molten Zinc
Air Knife to Control Coating Thickness
Cooling
Surface Finishing (Chromating, Oiling or Passivation)
Recoiling and Packing
Other Technical Treatments Available
Chromate Passivation: For improved corrosion resistance
Anti-Fingerprint Coating: For appliances and electronics
Oiling or Dry Coating: To prevent oxidation during storage
Skin Pass: Improves flatness and minimizes slip lines
How to Choose the Right Galvanized Coil
When selecting galvanized steel coil, consider the following:
Coating Thickness: Heavier zinc layers improve corrosion resistance
Base Steel Grade: Choose based on tensile strength or ductility required
Application Environment: For marine or high humidity areas, prefer GL or thick GI
Painted or Bare?: Use PPGI/PPGL for visible, decorative, or pre-colored applications
Budget & Longevity: Balance cost and performance based on project duration
Galvanized Coil vs. Other Metal Coils
| Feature | Galvanized Steel Coil | Aluminum Coil | Stainless Steel Coil | Carbon Steel Coil |
|---|---|---|---|---|
| Corrosion Resistance | High | High | Very High | Low |
| Weight | Moderate | Light | Heavy | Heavy |
| Price | Affordable | Higher | Highest | Lower |
| Recyclability | 100% | 100% | 100% | 90%+ |
| Typical Use | Construction, Roofing | Insulation, HVAC | Food, Pharma, Medical | Structural Use |
How to Place an Order
Contact Our Sales Team with your size, quantity, grade & delivery location
Receive Free Quotation within 12 hours
Confirm Technical Details and Drawings (if needed)
Sign Contract and Make Payment (Flexible terms available)
Production & Quality Inspection
Shipping & Delivery to Your Port or Warehouse
FAQ – Frequently Asked Questions
Q1: Can you provide samples?
A: Yes, free samples are available upon request. Freight is collected.
Q2: What is your minimum order quantity (MOQ)?
A: MOQ is usually 5 tons per size, but we support flexible trial orders.
Q3: What’s your lead time?
A: Usually 10–25 days depending on stock and order quantity.
Q4: Can you offer custom zinc coating thickness?
A: Yes. From 30g/m² to 275g/m² or higher based on your needs.
Q5: Do you provide surface treatments?
A: Chromated, oiled, anti-fingerprint, skin-passed options are available.
We also Supply
Additional Services
We provide value-added services including rough machining, heat treatment, cutting, machining, rolling, welding, surface treatment, etc. to ensure your finished product is delivered to you ready for finishing. All forgings are rough machined according to your forging printouts and include Mill Test Report (MTR), Mechanical and Physical Property Reports, and Ultrasonic, X-Ray and Non-Destructive Testing (NDT) reports (as ordered or specified).
By choosing Gengfei Steel, we will provide you with professional solutions.
Rough Machining
Heat Treatment
Welding
Cutting
Rolling
Surface Treatment
CNC Machining
Custom Fabrication
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Get the Best Price for Galvanized Coil Today
Contact Gengfei Steel for expert consultation and competitive pricing on galvanized steel coil and other steel products. Whether you’re looking for GI, GL, or PPGI coils, we have the right solution for your business.
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📧 Email: [email protected]
📞 WhatsApp / Phone: +86 191 3986 3252
🌐 Website: www.gengfeisteel.com
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