Zinc coated steel coil, also known as galvanized steel coil, is a fundamental material in modern construction and manufacturing. This product consists of a carbon steel coil that has been coated with a protective layer of zinc through a continuous hot-dip galvanizing process. This zinc coating acts as a sacrificial anode, providing exceptional corrosion resistance and significantly extending the service life of the steel. At ChinaCNU Steel, a premier zinc plated steel coil factory in Qingdao, we produce high-quality zinc steel coils for a global clientele, ensuring durability, reliability, and cost-effectiveness for demanding industrial applications.
Product Specifications
Our zinc coated steel coils are manufactured to meet precise international standards and customer specifications. Below is a detailed overview of our standard product range. Custom specifications for grade, coating weight, and dimensions are available upon request.
| Grade | Thickness (mm) | Width (mm) | Zinc Coating (g/m²) | Standard |
|---|---|---|---|---|
| DX51D, DX52D, DX53D | 0.12 – 3.0 | 600 – 1500 | 60 – 275 | EN 10346, ASTM A653 |
| SGCC, SGCH | 0.15 – 2.5 | 700 – 1250 | 80 – 220 | JIS G 3302 |
| Q195, Q235, SGC400 | 0.25 – 4.0 | 800 – 1600 | 100 – 350 | GB/T 2518 |
Applications
The versatility of galvanized zinc coated steel makes it indispensable across numerous sectors. Its primary benefit is rust prevention in harsh environments.
- Construction & Building: Roofing and wall cladding, structural frames, purlins, and trusses.
- Automotive Industry: Body panels, chassis components, and underbody parts.
- Home Appliances: Housings for washing machines, refrigerators, air conditioners, and electrical cabinets.
- Agriculture & Farming: Grain silos, animal pens, greenhouses, and irrigation systems.
- Industrial Manufacturing: Ductwork, cable trays, storage racks, and guardrails.
Why Choose ChinaCNU Steel
Selecting the right supplier for your zinc plated steel coil is critical. Here’s why global buyers trust ChinaCNU Steel.
- Direct Factory Source: We are a professional steel factory in Qingdao, China, with over 15 years of expertise in producing and exporting galvanized steel, ensuring competitive pricing and quality control.
- International Certifications: Our production is certified to ISO 9001 standards, and materials are SGS inspected, guaranteeing consistent quality and performance.
- Flexible Order Quantities: We offer a manageable Minimum Order Quantity (MOQ) of 25 tons, catering to both large projects and medium-scale procurement needs.
- Reliable Lead Time: With an efficient supply chain, we ensure a prompt lead time of 15 to 25 days from order confirmation to shipment.
- Secure Export Packing: Coils are packed with waterproof paper and steel sleeves, then secured on wooden pallets or in steel crates for maximum protection during ocean freight to over 50 countries.
- Global Export Experience: We have successfully supplied zinc steel to markets in Africa, the Middle East, Southeast Asia, and South America, understanding diverse regional requirements.
PPGI/GI Pricing
For our zinc coated steel coil (GI) and color coated PPGI coils, we offer highly competitive FOB Tianjin pricing. The final cost depends on several factors including current raw material prices, zinc coating weight, steel grade, dimensions, and order volume. We provide transparent pricing and are committed to delivering the best value. Contact us today for a free, no-obligation quote tailored to your specific project requirements.
FAQ
What is the difference between GI and PPGI steel coil?
GI (Galvanized Iron) refers to the base zinc coated steel coil with a silver-gray zinc surface. PPGI (Pre-Painted Galvanized Iron) is a GI coil that has undergone an additional process where a layer of paint or laminate is applied, providing both corrosion resistance and an aesthetic color finish. This makes PPGI ideal for applications like architectural roofing where color is important.
What are the standard payment terms for bulk orders of galvanized zinc coated steel?
For bulk orders, we commonly accept T/T (Telegraphic Transfer) and L/C (Letter of Credit). Payment terms are typically 30% deposit with order confirmation and 70% balance against copy of Bill of Lading, ensuring security and trust for both parties in international steel trade.
How do I determine the right zinc coating weight for my corrosion protection needs?
The required zinc coating weight, measured in grams per square meter (g/m²), depends on the environmental severity. For interior or mild environments, 60-120 g/m² may suffice. For outdoor construction or industrial atmospheres, we recommend 140-275 g/m² or higher. Our technical team can advise on the best specification for your specific application and location.
Can you supply custom-sized zinc plated steel coil for specialized manufacturing?
Yes, as a direct factory, ChinaCNU Steel specializes in producing custom galvanized steel coils. We can tailor the thickness, width, coil weight, and zinc coating specification to meet the exact needs of your production line, whether for automotive parts, specific appliance components, or bespoke construction profiles.
Get Factory Price for Zinc Coated Steel Coil
Send us your specs and get a free FOB Tianjin quote within 24 hours.