Galvanized steel coil, also known as GI coil, is a fundamental steel product where a continuous steel strip is coated with a layer of zinc through a hot-dip process. This hot dip galvanized coil offers superior corrosion resistance, forming a protective barrier that significantly extends the service life of the steel. Sourced directly from a leading zinc coated steel coil factory, ChinaCNU Steel provides high-quality galvanized coils suitable for a vast array of industrial and construction applications, combining durability with cost-effectiveness for global projects.
Our galvanized steel coils are manufactured to meet international standards, offering a versatile range of specifications to match precise project requirements. Below is a detailed overview of our standard product parameters.
| Grade | Thickness (mm) | Width (mm) | Zinc Coating (g/m²) | Standard |
|---|---|---|---|---|
| DX51D, DX52D, DX53D, SGCC, SGCH | 0.12 – 3.0 | 600 – 1500 | 40 – 275 | ASTM A653, JIS G3302, EN 10346, GB/T 2518 |
| Q195, Q235, SGC400, SGC440 | 0.8 – 2.5 | 800 – 1300 | 60 – 180 | ASTM A653, JIS G3302 |
| Structural Grades | 1.5 – 3.0 | 900 – 1250 | 100 – 200 | ASTM A653, EN 10346 |
The durability and corrosion resistance of hot dip galvanized coil make it an indispensable material across numerous sectors. Its primary uses include:
Selecting the right supplier for your galvanized steel coil is crucial for project success. Here’s why global buyers trust ChinaCNU Steel:
As a direct factory, ChinaCNU Steel offers highly competitive pricing for both Galvanized Steel Coil (GI) and Pre-Painted Galvanized Iron (PPGI). Our prices are quoted on an FOB Qingdao basis and are influenced by daily raw material costs (zinc and steel), coil specifications (grade, thickness, coating), and international market trends. For the most accurate and up-to-date factory price, we strongly recommend submitting your detailed specifications to receive a free, no-obligation quote tailored to your needs.
GI coil refers to the base product—steel coated with a protective layer of zinc. PPGI coil takes this a step further; it is a galvanized steel coil that has subsequently been painted with a colored coating on one or both sides, offering enhanced aesthetics and additional protection against weathering, making it ideal for architectural cladding.
Our standard and most secure payment terms for international buyers are by T/T (Telegraphic Transfer) or L/C (Letter of Credit). We typically require a deposit via T/T before production, with the balance paid before shipment, ensuring a smooth and trusted transaction for both parties.
Selecting the right zinc coating thickness (measured in g/m²) is key for longevity. For harsh environments with high humidity or industrial pollution, a heavier coating like Z180 or Z275 is recommended. For indoor or mild atmospheric conditions, a standard coating like Z60 or Z90 may be sufficient. Our technical team can advise based on your specific application.
While our standard MOQ for bulk orders is 25 tons, we understand the need for sample testing. We can often arrange smaller sample quantities of our pre painted galvanized steel coils for product verification. Please contact our sales team with your specific request to check feasibility.
Send us your specs and get a free FOB Qingdao quote within 24 hours.
