High Corrosion Resistance | Excellent Formability | Long Service Life | Factory Direct Supply
Source Factory | No Middleman | Complete Specifications | International Certifications | 10+ Years of Foreign Trade Experience
Product Overview
Hot Dipped Galvanized Steel Coil (GI) uses high-quality cold-rolled/hot-rolled steel sheet as the base material, processed through continuous hot-dip galvanizing technology. The zinc layer forms a dense metallurgical bonding layer with the steel substrate, featuring dual anti-corrosion properties of physical barrier + sacrificial anode. It can resist corrosive environments such as humidity, acid-base, and salt spray for a long time, widely used in construction, photovoltaic, industry, agriculture, transportation and other fields, and is the first choice for cost-effective anti-corrosion steel.
Core Product Advantages
Dual Anti-corrosion & Long-lasting Rust Prevention
Metallurgical bonding of zinc layer, strong adhesion, not easy to fall off
The zinc layer at the cut/scratched part is sacrificed first, automatically protecting the substrate from corrosion diffusion
Strong salt spray resistance, outdoor service life can reach 10-20 years
Suitable for conventional humidity, industrial atmosphere, mild salt spray environment Excellent Formability & Easy Processing
Excellent performance in bending, punching, rolling, and shearing
No cracking or deformation during complex processing, suitable for various deep processing
High dimensional accuracy, convenient installation, improving construction efficiency
Green & Environmental Friendly & Optimal Cost
100% recyclable steel, meeting environmental protection standards
Almost zero maintenance in the later stage, lower full life cycle cost
Factory direct supply, no middleman, controllable procurement cost
Technical Specifications
|
Item |
Specification Range |
Description |
|
Base Material |
Hot Dipped Galvanized Steel (GI) |
Continuous hot-dip galvanizing process |
|
Product Thickness |
0.2–3.0mm |
Customizable as required |
|
Product Width |
600–1500mm |
Support slitting and fixed-length cutting |
|
Zinc Coating Weight |
80–275g/m² |
Optional according to anti-corrosion requirements |
|
Surface Treatment |
Passivation / Phosphating |
Improve anti-corrosion and adhesion |
|
Execution Standard |
GB/T 2518, ASTM A653, EN 10142 |
Meet domestic and international general standards |
Application Scenarios
Hot dipped galvanized steel coil can adapt to anti-corrosion and structural requirements of multiple fields, covering the following core application directions:
Construction Field: Factory roof/wall, light steel villa, prefabricated building, warehouse, venue enclosure
Photovoltaic New Energy: Photovoltaic support, guide rail, photovoltaic supporting structural parts
Industry & Transportation: Container, carriage, cable tray, ventilation duct, equipment shell
Agricultural Facilities: Greenhouse, granary, breeding house steel structure
Decoration & General Use: Guardrail, rolling shutter door, metal products, hardware processing
Production Process
We adopt standardized continuous hot-dip galvanizing production process to ensure the stable quality of each batch of products:
Raw material finishing
Deep degreasing
Pickling purification
Fluxing treatment
Hot-dip galvanizing (about 450℃)
Air knife zinc layer control
Cooling and skin pass
Passivation / Phosphating
Full inspection
Coil splitting and packaging
Packaging & Delivery
|
Item |
Details |
|
Standard Packaging |
Waterproof paper + steel belt fastening + wooden pallet |
|
Minimum Order Quantity |
Regular 5 tons, negotiable for trial order |
|
Delivery Time |
7-15 days (after payment) |
|
Loading Port |
Qingdao Port, Tianjin Port |
|
Payment Method |
T/T, L/C |
|
Annual Supply Capacity |
Stable production capacity, long-term supply guarantee |
Authoritative Qualification Certification
Our products have passed a number of international authoritative certifications, with guaranteed quality:
ISO 9001 Quality Management System Certification
CE EU Safety Certification
SGS / BV Third Party Inspection Report
RoHS & REACH Environmental Protection Certification
Customization Service
We support full-dimensional product customization to meet your personalized needs:
Thickness/Width/Length customization
Zinc coating weight customization
Surface treatment customization
Slitting, leveling, longitudinal shearing processing
Free sample support (freight collect, refundable after cooperation)
FAQ
Q: Can you guarantee on-time delivery?
A: We operate in good faith, deliver products with guaranteed quality and quantity on time.
Q: How to get a quotation quickly?
A: Provide specifications, quantity and destination port, we will provide a quotation within 24 hours.
Q: How to apply for samples?
A: We can provide free samples, freight collect; the freight can be reimbursed after cooperation.
Q: What is the minimum order quantity?
A: Regular MOQ is 5 tons, negotiable for trial order.
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