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Help CenterPrepainted Galvanized Steel Coil for Roofing and Wall Cladding DX51D Z140 Strong Weather Resistance
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At Hemaokang Steel (Shandong) Co., Ltd., we are committed to delivering high-quality steel solutions that meet the rigorous demands of modern construction. Our Prepainted Galvanized Steel Coil for Roofing and Wall Cladding DX51D Z140 Strong Weather Resistance is engineered to provide exceptional durability and aesthetic appeal for a wide range of architectural projects. With ISO9001 certification and a strong export record spanning global markets, we ensure that each coil meets stringent quality standards. This product combines the proven strength of galvanized steel with a premium paint coating, offering superior corrosion resistance and long-lasting color retention, making it an ideal choice for both residential and commercial buildings.
Product Overview
Our prepainted galvanized steel coil, grade DX51D with Z140 zinc coating, is designed specifically for roofing and wall cladding applications. The base metal is hot-dip galvanized with a zinc layer of 140 g/m², providing excellent protection against rust and environmental factors. The coil is then coated with a high-performance paint system (polyester, PVDF, or other options) that enhances weather resistance, UV stability, and color fastness. This product is suitable for use in varied climates, from tropical to temperate regions, and is a cost-effective alternative to traditional building materials.
Key Features and Technical Specifications
- Strong Weather Resistance: The paint coating is formulated to withstand harsh sunlight, rain, snow, and temperature fluctuations, preventing chalking, fading, and peeling.
- Zinc Coating Z140: The galvanized layer (140 g/m²) ensures excellent corrosion resistance, extending the service life of the coil in both rural and industrial environments.
- DX51D Grade: This steel grade offers good formability and weldability, making it easy to process into profiles, panels, and sheets.
- Versatile Applications: Ideal for roofing sheets, wall cladding, ceiling panels, and sandwich panel cores. Suitable for factories, warehouses, airports, and residential buildings.
- Customizable Options: Available in various thicknesses (0.12–2.0 mm), widths (600–1500 mm), and colors (RAL or custom). Coating types include polyester, silicon modified polyester (SMP), and PVDF for enhanced performance.
- Eco-Friendly: The paint system complies with environmental regulations, and the steel is fully recyclable.
Technical Parameters Table
| Parameter | Value |
| Steel Grade | DX51D (EN 10169 / ASTM A755) |
| Zinc Coating Weight | Z140 (140 g/m², both sides) |
| Coating Type | Polyester, PVDF, SMP (optional) |
| Thickness Range | 0.12 mm – 2.0 mm |
| Width Range | 600 mm – 1500 mm |
| Color Options | RAL codes, customized colors |
| Coil Inner Diameter | 508 mm or 610 mm |
| Coil Weight | 3 – 10 tons per coil (customizable) |
| Standard | JIS G3312, EN 10169, ASTM A755 |
Advantages for Your Project
- Cost-Effective: Compared to aluminum or stainless steel, our prepainted coil offers a lower material cost while maintaining excellent performance.
- Easy Installation: Lightweight yet strong, the coils can be easily cut, bent, and profiled, reducing labor and installation time.
- Low Maintenance: The durable paint finish resists dirt accumulation and can be cleaned with water, saving on maintenance costs over the building's lifespan.
- Aesthetic Flexibility: A wide range of colors and finishes (gloss, matte, metallic) allows architects to achieve desired design aesthetics.
- Reliable Supply: With annual export value of US$50 million to US$100 million, we maintain stable inventory and fast delivery to global clients.
Trust and Quality Assurance
Hemaokang Steel (Shandong) Co., Ltd. is a dedicated manufacturer with ISO9001 certification, ensuring that every production process, from raw material inspection to final packaging, meets international quality standards. Our facility in Liaocheng, Shandong, China, is equipped with advanced production lines and experienced technicians (51-100 employees). We have served customers across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East, earning a reputation for reliability and product consistency. Our prepainted galvanized steel coil is rigorously tested for adhesion, impact resistance, salt spray resistance, and UV aging. We are confident that this product will exceed your expectations for roofing and wall cladding projects. Contact us today for a quote or sample, and let our team support your next construction endeavor.
Frequently Asked Questions (FAQ)
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Q: What is the difference between DX51D and other grades like DX52D?
A: DX51D is a standard grade for commercial forming and bending. It offers good formability for general roll forming and profiling. DX52D has higher minimum yield strength, but DX51D is sufficient for most roofing and cladding applications. -
Q: Can this coil be used in coastal areas with high salt content?
A: Yes, the Z140 zinc coating provides good corrosion resistance. For extra protection, we recommend selecting a PVDF coating which offers superior resistance to salt spray and UV. We can also discuss higher zinc coatings (e.g., Z180) upon request. -
Q: What is the minimum order quantity (MOQ)?
A: Our standard MOQ is 25 tons per size and color. However, we can accommodate smaller trial orders for new customers. Please contact our sales team for details. -
Q: How long does the color last without fading?
A: The color retention depends on the coating type and environmental conditions. For polyester coating, expect 5-8 years of color stability. PVDF coatings can last 15-20 years with minimal fading. We provide warranty documentation upon request. -
Q: Do you provide samples before mass production?
A: Yes, we offer free samples (size A4) for quality evaluation. You only need to pay for shipping. Sample preparation takes 3-5 days. -
Q: What packaging is used for export?
A: Coils are packed with anti-rust paper, plastic film, and steel strapping to protect during transit. For sea freight, we use wooden pallets or crates as needed. Container loading is optimized to maximize quantity. -
Q: Can you produce custom colors and thicknesses?
A: Absolutely. We support custom colors (RAL or Pantone) and custom thicknesses within our production range. A minimum quantity may apply for custom specifications. Please provide your requirements for a tailored solution. -
Q: What is the lead time for bulk orders?
A: For standard specifications, lead time is 15-20 days after receiving deposit. For custom orders, it may extend to 25-30 days. Our production capacity supports fast turnaround for large orders.
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