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Help CenterGalvanized Steel Coil for Building Roof and Wall Panel, 0.5mm Z275
Product Spotlights
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Hemaokang Steel (Shandong) Co., Ltd. is proud to introduce our premium Galvanized Steel Coil for Building Roof and Wall Panel, specifically engineered for the demanding requirements of modern construction. With a thickness of 0.5mm and a zinc coating of Z275 (275g/m²), this product offers exceptional corrosion resistance, excellent formability, and reliable performance in roofing and wall panel applications. As a company with an annual export value of US$50–100 million and a global presence across North America, South America, Europe, Asia, Africa, and Oceania, we are committed to delivering consistent quality and timely supply.
Our galvanized steel coil is produced using advanced hot-dip galvanizing technology, ensuring a uniform zinc coating that adheres firmly to the steel substrate. This process provides long-term protection against rust and environmental factors, making it an ideal choice for roofing, wall cladding, and other building envelope applications. The product is available in various widths and coil weights, with customization options to meet your specific project needs.
Key Features & Technical Specifications
- High Corrosion Resistance: Z275 zinc coating (275g/m² per side) provides excellent protection in harsh environments, including coastal and industrial areas.
- Precise Thickness: 0.5mm nominal thickness with tight tolerances (±0.03mm) ensures consistent quality for panel forming.
- Excellent Formability: The steel is fully annealed, offering good ductility for roll-forming, bending, and profiling without cracking the coating.
- Strong Adhesion: Zinc coating is tightly bonded to the base metal, preventing peeling or flaking during processing.
- Wide Application: Suitable for roof panels, wall panels, purlins, and other structural components in residential, commercial, and industrial buildings.
- Customizable Dimensions: Widths from 600mm to 1500mm, coil inner diameter options (508mm or 610mm), and coil weight up to 8 tons per coil.
- Certified Quality: Manufactured under ISO9001 quality management system, with standard compliance to ASTM A653, JIS G3302, and EN 10142.
| Parameter | Specification |
|---|---|
| Base Metal | Low carbon steel (CS Type B / DX51D+Z) |
| Thickness (mm) | 0.5 ± 0.03 |
| Zinc Coating (g/m²) | Z275 (275 per side, total 550) |
| Width (mm) | 600–1500 (customizable) |
| Coil ID (mm) | 508 or 610 (optional) |
| Coil Weight (ton) | 3–8 (customizable) |
| Surface Finish | Regular spangle, minimized spangle, or spangle-free (upon request) |
| Tensile Strength (MPa) | 270–500 (depending on grade) |
| Yield Strength (MPa) | 140–300 (depending on grade) |
| Elongation (%) | ≥ 20 |
Advantages for Your Building Projects
Using 0.5mm Z275 galvanized steel coil for roof and wall panels offers significant benefits:
- Long Service Life: The robust zinc coating provides a barrier against moisture and oxygen, extending the lifespan of panels by 20–30 years compared to uncoated steel.
- Cost-Effective: Lightweight yet strong, reducing structural support requirements and installation costs.
- Low Maintenance: No need for frequent painting or anti-rust treatment, saving labor and material expenses over time.
- Versatility: Compatible with various panel profiles such as standing seam, corrugated, and insulated sandwich panels.
- Environmentally Friendly: Galvanized steel is 100% recyclable, contributing to green building certifications.
Why Choose Hemaokang Steel?
Established in 2025, Hemaokang Steel (Shandong) Co., Ltd. has quickly become a trusted supplier in the global steel market. With an annual export value of US$50–100 million and a dedicated team of 51–100 employees, we leverage our location in Liaocheng, Shandong (a major steel production hub) to offer competitive pricing and reliable logistics. Our products are certified under ISO9001, ensuring consistent quality control from raw material procurement to final delivery. We serve a diverse range of markets including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and beyond.
Whether you need custom width, special surface treatment, or just-in-time delivery, our experienced sales team can accommodate your requirements. We have successfully supplied steel coils for large-scale roofing projects in both residential and commercial sectors, earning positive feedback from clients worldwide. Contact us today for a quote or technical consultation — we are committed to being your long-term partner in steel.
Frequently Asked Questions
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Q: What does Z275 mean in galvanized steel?
A: Z275 indicates a zinc coating weight of 275 grams per square meter (g/m²) on each side of the steel sheet. This is equivalent to the former G90 standard. It provides excellent corrosion resistance for building applications. -
Q: Can this coil be used for both roof and wall panels?
A: Yes, the 0.5mm thickness and Z275 coating make it suitable for both roofing and wall cladding. It is strong enough to withstand wind loads and has good formability for various panel profiles. -
Q: What is the typical lead time for orders?
A: For standard sizes, we can ship within 7–15 days after receipt of payment. Custom orders may require 15–25 days depending on quantity and specifications. We always confirm the exact timeline with each order. -
Q: Do you offer samples before bulk order?
A: Yes, we provide free samples (courier cost borne by buyer) for quality evaluation. Please contact our sales team to arrange sample delivery. -
Q: What certifications do you have?
A: Our factory is ISO9001 certified, and our products meet international standards such as ASTM A653, JIS G3302, and EN 10142. Specific mill test certificates are available upon request. -
Q: Can I get a custom width or coil weight?
A: Absolutely. We can slit coils to your required width from 600mm to 1500mm, and adjust coil weight up to 8 tons. Custom inner diameter (508mm or 610mm) is also available. -
Q: How is the coil packaged to prevent damage during shipping?
A: Each coil is wrapped with waterproof paper, plastic film, and steel strapping. Additional wooden pallets or crates can be used for sea freight to ensure safe arrival. -
Q: What payment terms do you accept?
A: We accept T/T (30% deposit, 70% before shipment) and L/C at sight. For long-term cooperation, flexible terms may be negotiated.
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