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Help CenterMill Test Report Pre-Painted Galvanized Steel Coil DX51D+Z 0.5mm-1.2mm Thickness 1250mm Width 180g/m2 Zinc Coating
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At Hemaokang Steel (Shandong) Co., Ltd., we are proud to offer our premium Mill Test Report Pre-Painted Galvanized Steel Coil DX51D+Z with thickness ranging from 0.5mm to 1.2mm, a standard width of 1250mm, and a robust zinc coating of 180g/m². As a trusted manufacturer established in 2025 with an annual export value of US$50 million to US$100 million, we combine advanced production technology with strict quality control to deliver coils that meet the highest industry standards. Our product is designed to provide exceptional corrosion resistance, aesthetic appeal, and long-term durability for a wide range of applications.
This pre-painted galvanized steel coil is manufactured using a cold-rolled substrate of DX51D+Z, which ensures excellent formability and weldability. The hot-dip galvanized coating (180g/m²) provides superior protection against rust and environmental factors. The coil is then coated with a high-performance paint system, available in various colors and finishes (such as polyester, PVDF, HDP, etc.), offering both decorative and protective functions. Each coil comes with a Mill Test Report certifying its mechanical and chemical properties, giving you full confidence in your purchase.
Our product is widely used in the construction industry for roofing sheets, wall panels, ceiling tiles, and industrial buildings. It is also suitable for manufacturing home appliances, automotive parts, and furniture. The combination of strong base metal, optimal zinc coating, and durable paint layer makes it an ideal choice for projects requiring high weather resistance and long service life.
Key Features & Specifications
- Base Material: DX51D+Z hot-dip galvanized steel – excellent corrosion resistance and formability.
- Thickness Range: 0.5mm – 1.2mm, available in customized increments (e.g., 0.5mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm).
- Width: 1250mm standard width; other widths available upon request (e.g., 1000mm, 1219mm).
- Zinc Coating: 180g/m² (double-sided) – meets ASTM and EN standards for corrosion protection.
- Paint System: High-quality polyester (PE), polyvinylidene fluoride (PVDF), or high-durability polyester (HDP) – customizable gloss level (20-70%) and color (RAL, Pantone, or custom).
- Coil Weight: Typically 3–8 tons per coil, depending on thickness and width.
- Inner Diameter: 508mm or 610mm; outer diameter variable.
- Mill Test Report: Provided with each shipment, detailing chemical composition, mechanical properties, coating thickness, and paint adhesion test results.
| Parameter | Value |
|---|---|
| Standard | JIS G3312, EN 10169, ASTM A755 |
| Tensile Strength | 270 – 500 MPa (depending on thickness) |
| Yield Strength | 140 – 350 MPa |
| Elongation | ≥ 20% |
| Zinc Coating Weight | 180 g/m² (both sides) |
| Paint Thickness | 20 – 30 μm (top coat), 5 – 10 μm (back coat) |
| Surface Finish | Smooth, embossed, or textured (optional) |
Product Advantages & Benefits
- Superior Corrosion Resistance: The combination of a 180g/m² zinc coating and a durable paint layer provides excellent protection against rust, salt spray, and UV radiation, extending the lifespan of your structures.
- Excellent Formability: DX51D+Z grade offers outstanding ductility, allowing for easy bending, stamping, and profiling without cracking or peeling of the coating.
- Aesthetic Versatility: Available in a wide range of colors and finishes, including metallic, matte, and glossy options, to meet architectural and design requirements.
- Consistent Quality: Each coil is produced under strict ISO9001 certified quality management system, and every shipment includes a Mill Test Report to guarantee traceability and performance.
- Cost-Effective Solution: Pre-painted coils eliminate the need for on-site painting, reducing labor costs and construction time. The long-lasting coating also minimizes maintenance expenses.
- Customizable Options: We offer custom thickness, width, color, and coating types to suit specific project needs. Our technical team can assist in selecting the optimal specification.
Trust & Reliability
As a new but rapidly growing company, Hemaokang Steel (Shandong) Co., Ltd. has already achieved ISO9001 certification and established a strong foothold in global markets. With an annual export value of over US$50 million and a dedicated team of 51–100 employees, we serve clients across North America, South America, Europe, Africa, Oceania, and Asia. Our state-of-the-art production lines are located in Liaocheng, Shandong, China – a major steel industry hub – ensuring competitive pricing and reliable supply. We are committed to delivering products that meet your exact specifications, backed by our Mill Test Report and responsive after-sales support. Contact us today for a quotation or to discuss your project requirements.
Frequently Asked Questions (FAQ)
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Q: What is a Mill Test Report, and why is it important?
A: A Mill Test Report (MTR) is a quality assurance document that certifies the chemical composition, mechanical properties, and coating characteristics of the steel coil. It provides full traceability and ensures the product meets specified standards. Every coil we supply comes with an MTR, giving you confidence in performance and compliance. -
Q: Can I order custom colors and thicknesses?
A: Yes, we offer customization. Colors can be matched to RAL, Pantone, or your own sample. Thicknesses from 0.5mm to 1.2mm are available in increments of 0.1mm. Widths other than 1250mm (e.g., 1000mm, 1219mm) are also possible subject to minimum order quantities. -
Q: What is the typical lead time?
A: For standard specifications, lead time is approximately 15–25 days after order confirmation. Custom orders may require additional time. We can provide an accurate schedule upon request. -
Q: How is the coil packaged for export?
A: Coils are packed with anti-rust paper, plastic film, and steel sheet wrapping, then secured with steel strapping and placed on wooden pallets or frames. Suitable for sea or land transport, ensuring protection during transit. -
Q: What payment terms do you accept?
A: We accept T/T (30% deposit, 70% before shipment), L/C at sight, and other negotiable terms. For large orders, we may offer flexible payment arrangements. -
Q: Is the product suitable for outdoor use?
A: Yes, the pre-painted galvanized steel coil is designed for outdoor applications such as roofing and cladding. The paint system provides UV resistance and weather durability. For harsh environments, we recommend PVDF or HDP coatings. -
Q: Do you provide samples for testing?
A: Yes, we can provide free samples (approximately 20cm x 20cm) for evaluation. The buyer covers the shipping cost. Samples will be taken from current production to represent typical quality. -
Q: How do you ensure consistent quality across batches?
A: Our ISO9001 certified quality management system governs every stage from raw material inspection to final packaging. We perform in-process and final testing, including coating thickness, adhesion, color, and mechanical tests. The Mill Test Report documents all results.
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