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Help CenterZinc Coating 60-275g/m2 Hot Dip Galvanized Steel Coil DX51D+Z
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Welcome to Hemaokang Steel (Shandong) Co., Ltd., your reliable partner in high-quality steel products. Established in 2025, we have rapidly grown into a global supplier with an annual export value of US$50 million to US$100 million, serving markets across North America, South America, Europe, Asia, Africa, and Oceania. Our Hot Dip Galvanized Steel Coil DX51D+Z with zinc coating weight ranging from 60 to 275 g/m² is engineered to deliver exceptional corrosion resistance, durability, and formability. Whether you're in construction, automotive, or home appliances, this product is designed to meet your most demanding requirements.
Our commitment to quality is backed by ISO9001 certification, and every coil is produced under strict process control at our facility in Liaocheng, Shandong. With a dedicated team of 51–100 skilled employees, we ensure consistent product performance and timely delivery from the port of Qingdao. Below, we dive deep into the technical specifications, features, and benefits of our DX51D+Z galvanized steel coil.
Product Overview
Our Hot Dip Galvanized Steel Coil is made from low-carbon steel (DX51D grade) with a continuous hot-dip zinc coating. The coating weight range of 60–275 g/m² (double-sided) offers flexible protection against rust and environmental factors. The product is widely used for:
- Roofing and wall cladding – Excellent weather resistance and longevity.
- Automotive components – Superior formability for stamping and bending.
- Home appliances – Smooth surface finish for painting or powder coating.
- Industrial structures – High strength and corrosion protection.
Key Technical Specifications
| Parameter | Value |
| Base Metal Grade | DX51D+Z (per EN 10143) |
| Zinc Coating Weight (g/m²) | 60 – 275 (double-sided, Z60 to Z275) |
| Thickness (mm) | 0.12 – 6.0 (customizable) |
| Width (mm) | 600 – 1500 (customizable) |
| Coil Inner Diameter | 508 mm or 610 mm |
| Coil Weight | 3 – 10 tons per coil |
| Surface Treatment | Passivation, oiling, dry, or skin pass (optional) |
| Tensile Strength (MPa) | 270 – 500 (depending on thickness) |
| Elongation (%) | ≥ 22% (for thickness ≥ 0.5 mm) |
Product Features & Benefits
- Outstanding Corrosion Resistance: The zinc coating acts as a sacrificial barrier, protecting the steel substrate even when scratched. The 60–275 g/m² range allows you to select the optimal protection level for your environment.
- Excellent Formability: DX51D+Z is known for its good ductility, making it suitable for deep drawing, bending, and profiling without cracking the coating.
- Consistent Coating Adhesion: Our hot-dip process ensures uniform zinc adhesion across the entire coil surface, preventing flaking or peeling during fabrication.
- Customizable Dimensions: We offer a wide range of thicknesses (0.12–6.0 mm) and widths (600–1500 mm) to meet your specific project needs. Custom coil weights and inner diameters are also available.
- Surface Finish Options: Choose from passivated (for anti-fingerprint), oiled (for extra storage protection), dry, or skin-passed (for improved surface flatness) finishes.
- Cost-Effective Solution: Compared to stainless steel, hot-dip galvanized steel provides a balance of performance and economy, especially for large-scale construction projects.
- Eco-Friendly: Zinc is 100% recyclable, and our production process complies with international environmental standards.
Quality Assurance & Packaging
Every coil undergoes rigorous inspection at our factory, including coating weight testing (by magnetic gauge or weigh-strip-weigh method), tensile testing, and visual surface inspection. We pack the coils with:
- Waterproof wrapping (kraft paper, plastic film, or steel strapping)
- Edge protection (plastic or metal rings)
- Export-standard wooden pallets or steel frames (for slit coils)
- Labeling with grade, heat number, coating weight, dimensions, and net weight
Why Choose Hemaokang Steel?
With ISO9001 certification and a state-of-the-art production line, we guarantee consistent quality. Our team of 51–100 experienced professionals ensures that every order is handled with care, from raw material sourcing to final delivery. We ship from Qingdao Port with flexible logistics options, and our annual export volume of US$50–100 million reflects the trust our global customers place in us. We serve markets in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, and the domestic market.
Our hot-dip galvanized steel coil DX51D+Z is not just a product—it’s a commitment to durability, precision, and customer satisfaction. We invite you to experience the Hemaokang difference. Contact us today for a quote or technical consultation, and let us supply your next project with the highest quality galvanized steel.
Frequently Asked Questions
1. What does DX51D+Z mean?
DX51D is a European standard designation for low-carbon steel for cold forming, with continuous hot-dip zinc coating. The "+Z" indicates the coating is zinc-based. This grade offers excellent formability and weldability.
2. How do I choose the right zinc coating weight?
Select the coating weight based on the corrosiveness of the environment. For indoor applications (appliances), Z60–Z100 is sufficient. For outdoor construction (roofing, fencing), consider Z180–Z275 for longer protection. We can advise based on your specific use case.
3. Can you provide coils with thicknesses beyond 6.0 mm?
Our standard range is 0.12–6.0 mm. For thicknesses above 6.0 mm, please contact us for special production arrangements. We can discuss custom possibilities.
4. What surface treatments are available?
We offer passivation (chromate or chromate-free), oiling, dry, and skin pass. Passivation helps prevent white rust during storage; oiling provides extra protection. Skin pass improves surface flatness and roughness for painting.
5. Do you provide samples before bulk order?
Yes, we offer free samples (up to a few kilograms) with the customer covering shipping costs. You can evaluate the quality and coating uniformity before placing a large order.
6. What is the typical lead time?
For standard specifications (thickness, width, coating weight), lead time is 15–25 days after order confirmation. Custom specifications may require 25–35 days. We ship from Qingdao port via sea or container.
7. How do you ensure the coating weight is uniform?
We use continuous online coating weight measurement systems (e.g., X-ray fluorescence) and perform random sampling for verification. Our process is ISO9001 certified, ensuring consistency.
8. Can you cut the coil into sheets or slit coils?
Yes, we offer slitting and cutting-to-length services. Please specify your required dimensions, and we will provide coils or sheets accordingly.
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