Galvanized steel sheet, also known as GI plain sheet or zinc coated sheet, is a cold-rolled steel substrate coated with a protective layer of zinc to prevent rust and corrosion. This essential construction and manufacturing material offers superior durability and longevity, making it a fundamental choice for a wide range of industrial and architectural applications. As a leading galvanized iron sheet factory in Qingdao, ChinaCNU Steel produces high-quality galvanized steel sheets for export to global markets, ensuring consistent performance and reliability.
Product Specifications
Our galvanized steel sheets are manufactured to exacting standards, available in a comprehensive range of specifications to meet diverse project requirements. Below is a detailed overview of our standard product specifications.
| Grade | Thickness (mm) | Width (mm) | Zinc Coating (g/m²) | Standard |
|---|---|---|---|---|
| DX51D, DX52D, DX53D | 0.12 – 3.0 | 600 – 1500 | Z60 – Z275 | ASTM A653, EN 10346, JIS G3302 |
| SGH340, SGH400, SGH440 | 0.4 – 2.5 | 900 – 1250 | Z80 – Z180 | JIS G3141 |
| SGCC, SGCH | 0.15 – 2.0 | 700 – 1300 | Z60 – Z150 | JIS G3302 |
Applications
The versatility of galvanized steel sheet makes it indispensable across numerous sectors. Its corrosion resistance and strength are utilized in:
- Construction & Building: Roofing and wall cladding, structural frames, purlins, and ceiling panels.
- Automotive Industry: Body panels, chassis components, and underbody parts for enhanced durability.
- Home Appliances: Washing machine cabinets, refrigerator liners, and air conditioner housings.
- Agricultural Equipment: Grain silos, greenhouses, fencing, and livestock enclosures.
- Industrial Manufacturing: Ductwork, electrical enclosures, cable trays, and storage cabinets.
- Infrastructure: Highway guardrails, sound barriers, and signage posts.
Why Choose ChinaCNU Steel
Selecting the right supplier for your galvanized iron sheet is critical. Here’s why global buyers trust ChinaCNU Steel:
- Direct Factory Source: We are a professional galvanized iron sheet factory based in Qingdao, China, ensuring competitive pricing and full quality control from production to delivery.
- Proven Experience & Certifications: With over 15 years of expertise in exporting steel, we hold ISO 9001 certification and provide SGS inspection reports to guarantee product compliance and quality.
- Flexible Order Quantities: We accommodate various project scales with a manageable Minimum Order Quantity (MOQ) of 25 tons.
- Reliable Lead Times: We ensure timely delivery with a standard production and shipping lead time of 15 to 25 days.
- Secure Export Packing: Sheets are packed in waterproof wrapping and secured with steel straps on wooden pallets or in bundles to prevent damage during ocean freight.
- Global Export Network: We successfully serve clients in over 50 countries across Africa, the Middle East, Southeast Asia, and South America, understanding diverse market requirements.
PPGI/GI Pricing
Pricing for our galvanized steel sheet (GI) and color-coated galvanized sheet (PPGI) is based on current raw material costs, zinc coating weight, dimensions, and order volume. We offer competitive FOB Tianjin pricing, providing a significant logistical advantage for global shipping. For the most accurate and up-to-date quote tailored to your specific grade, thickness, and coating requirements, please contact our sales team directly. We provide free, no-obligation quotations within 24 hours.
FAQ
What is the difference between GI sheet and PPGI sheet?
GI sheet refers to the standard galvanized steel sheet with a zinc coating for corrosion protection. PPGI (Pre-Painted Galvanized Iron) is a GI sheet that has undergone an additional process where a colored paint or polyester coating is applied on top of the zinc layer. This provides both corrosion resistance and an aesthetic finish, making PPGI ideal for architectural applications like roofing where color is important.
What are the standard zinc coating weights available for galvanized steel coils?
Common zinc coating weights, expressed in grams per square meter (g/m²), range from Z60 (light coating) to Z275 (heavy coating). For instance, a Z120 coating is a standard choice for general construction, while Z180 or Z275 is specified for more corrosive environments like coastal areas or industrial zones. We can produce according to ASTM, EN, and JIS standards.
What is the typical lead time for exporting galvanized sheets from China to the Middle East?
From our Qingdao factory, the total lead time—including production and shipping—for galvanized sheet orders to the Middle East is typically between 15 to 25 days. This timeframe can vary slightly based on the specific port of destination and current vessel schedules. We provide detailed logistics planning upon order confirmation.
Do you provide mill test certificates for your galvanized steel products?
Yes, absolutely. As a certified manufacturer, we provide full Mill Test Certificates (MTCs) or Material Test Reports with every shipment. These documents verify the chemical composition, mechanical properties, and coating weight of the galvanized steel sheets, ensuring they meet the specified international standards. SGS third-party inspection can also be arranged.
Get Factory Price for Galvanized Steel Sheet
Send us your specs and get a free FOB Tianjin quote within 24 hours.