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Help CenterSGCC Hot Dipped Galvanized Steel Coil G90 Z275 0.3-3.0mm Spangle Free Coil
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your trusted partner in premium steel solutions. Our SGCC Hot Dipped Galvanized Steel Coil G90 Z275 0.3-3.0mm Spangle Free Coil is engineered to deliver superior corrosion resistance, excellent formability, and a clean, spangle-free surface for demanding applications. With annual export value exceeding US$50 million and ISO9001 certification, we ensure consistent quality and reliable supply worldwide.
This product combines the strength of SGCC cold-rolled steel with a uniform hot-dipped zinc coating (G90/Z275 g/m²), offering extended service life in harsh environments. The spangle-free finish provides a smooth, paintable surface ideal for automotive panels, home appliances, and architectural cladding. Available in thicknesses from 0.3mm to 3.0mm, our coils are customizable to meet your exact dimensional requirements.
- SGCC Grade: Guarantees consistent mechanical properties and excellent weldability.
- Hot Dipped Galvanizing: Zinc coating weight G90 (0.90 oz/ft²) or Z275 (275 g/m²) – both equivalents for maximum protection.
- Spangle Free: No visible zinc crystals, making it ready for painting or powder coating without additional surface treatment.
- Thickness Range: 0.3mm to 3.0mm, with tight thickness tolerance (±0.02mm for thin gauges, available upon request).
- Width Options: Customizable from 600mm to 1500mm, with slit edge or mill edge.
- Coil Weight: Up to 15 tons per coil, optimized for efficient handling and processing.
- Surface Finish: Chemical passivation (chromate-free optional) and oiling for added protection during storage and transport.
| Parameter | Value |
|---|---|
| Material Grade | SGCC (JIS G3302) / ASTM A653 CS Type B |
| Zinc Coating | G90 (0.90 oz/ft²) / Z275 (275 g/m²) |
| Thickness | 0.3 – 3.0 mm |
| Width | 600 – 1500 mm (customizable) |
| Spangle | Spangle Free (Zero Spangle) |
| Coil Inner Diameter | 508 mm / 610 mm (available) |
| Surface Treatment | Passivated, Oiled, Skin-Passed (optional) |
Benefits for Your Business: Our SGCC spangle-free coil offers a perfect balance of strength and ductility. The uniform zinc coating ensures excellent corrosion resistance, reducing maintenance costs and extending product life. The spangle-free surface eliminates the need for additional grinding or priming, saving time and money in your production line. With our advanced production lines and strict quality control, you receive coils with consistent thickness, flatness, and surface finish every time.
We supply to industries including automotive (body panels, chassis parts), construction (roofing sheets, wall panels, ductwork), home appliances (refrigerators, washing machines, microwave ovens), and general manufacturing. Our coils are packed with anti-rust paper, steel sheet protection, and multiple straps to ensure safe transit. Standard delivery time is 15-25 days after deposit, depending on quantity and customization.
1. What does SGCC stand for?
SGCC is a Japanese standard designation for hot-dip galvanized steel sheet and coil. It indicates commercial quality cold-rolled steel with a zinc coating.
2. Is G90 the same as Z275?
Yes, G90 (0.90 oz/ft²) and Z275 (275 g/m²) are equivalent zinc coating weights. G90 is common in North America, while Z275 is used in metric markets.
3. What is spangle free, and why is it important?
Spangle free means no visible zinc crystal patterns on the surface. It provides a smooth, uniform finish that is ideal for painting and powder coating without additional surface preparation.
4. Can you supply coils with thickness tolerance better than standard?
Yes, we can offer tighter thickness tolerances (e.g., ±0.015mm for thin gauges) upon request. Please contact our sales team with your specific requirements.
5. What is the minimum order quantity (MOQ)?
Our standard MOQ is 25 tons per size, but we can negotiate smaller quantities for trial orders or repeat customers.
6. How do you package the coils to prevent damage during shipping?
Each coil is wrapped with VCI paper, plastic film, then steel sheet covering, and secured with steel straps. Coils are loaded in containers or on flat racks, with proper dunnage to prevent movement.
7. Do you provide third-party inspection reports?
Yes, we welcome SGS, BV, or other third-party inspections. Reports can be provided before shipment, and we also have internal lab testing for coating weight, thickness, and mechanical properties.
8. What are the main applications for this spangle-free coil?
Common applications include automotive exterior panels, white goods (home appliances), architectural cladding, ventilation ducts, and high-end roofing where a smooth surface is required.
Why Choose Hemaokang Steel? Established in 2025, we have rapidly grown into a leading exporter with annual export value between US$50 million and US$100 million. Our team of 51-100 skilled professionals ensures every order meets the highest standards. We hold ISO9001 certification, which reflects our commitment to quality management. Our products are trusted by customers across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. We offer competitive pricing, flexible payment terms (T/T, L/C), and dedicated after-sales support. Contact us today for a quote or sample – let our SGCC hot dipped galvanized steel coil add value to your next project!
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