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Help CenterGalvanized Coil DX51D Z180 0.3-2.0mm Thickness 750-1250mm Width for Roll Forming
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Hemaokang Steel (Shandong) Co., Ltd. is a professional manufacturer and exporter of high-quality galvanized steel coils. Our DX51D Z180 galvanized coil with thickness from 0.3mm to 2.0mm and width from 750mm to 1250mm is specifically engineered for roll forming applications that demand consistent mechanical properties, excellent coating adhesion, and superior corrosion resistance. With an annual export value of US$50-100 million and a dedicated team of 51-100 employees, we supply reliable material to construction and manufacturing clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. This product is manufactured under strict quality control and has obtained ISO9001 certification, ensuring traceability and consistent performance for your production lines.
Key Features and Technical Specifications
- Excellent Formability: DX51D grade is specifically designed for cold forming, bending, and roll forming operations, providing stable elongation and low yield strength.
- High Zinc Coating (Z180): 180 g/m² of hot-dip zinc coating offers reliable protection against rust and atmospheric corrosion, suitable for medium-to-long service life applications.
- Versatile Thickness Range: 0.3mm to 2.0mm enables use in a wide variety of profiles, including roof sheets, wall cladding, floor decks, purlins, and lightweight steel framing.
- Flexible Width: 750mm to 1250mm coil widths are adjustable according to your specific roll forming machine and slitting requirements.
- Smooth Surface: Available in regular spangle, minimized spangle, or zero spangle surface finishes to match your aesthetic and painting needs.
- Tight Dimensional Tolerances: Precise thickness and width control ensure consistent feeding into roll forming machines, reducing waste and downtime.
- Reliable Coil Packaging: Standard seaworthy packing with inner moisture-proof paper, plastic film, steel sheath, and edge protection ensures damage-free transit.
| Parameter | Value |
|---|---|
| Base Metal Grade | DX51D |
| Coating Designation | Z180 (total 180 g/m² both sides) |
| Thickness | 0.3 - 2.0 mm |
| Width | 750 - 1250 mm |
| Coil Inner Diameter | 508 / 610 mm |
| Coil Weight | 3 - 8 tons per coil (customizable) |
| Surface Finish | Regular spangle / minimized spangle / zero spangle |
| Tensile Strength | 270 - 500 MPa (depending on thickness) |
| Yield Strength | 140 - 300 MPa (typical for DX51D) |
| Elongation | 22% - 30% (per EN 10346) |
Why Choose This Coil for Roll Forming?
Roll forming requires material with consistent mechanical properties and uniform coating thickness to avoid profile distortion or die wear. Our DX51D Z180 coil is processed on modern hot-dip galvanizing lines with advanced tension leveling, providing a flat strip that feeds smoothly into your roll former. The zinc coating adheres tightly to the steel surface, reducing the risk of powdering or flaking during bending, even at tight radii. The product is suitable for both non-painted and pre-painted applications, and it can be further processed by slitting, cutting-to-length, stamping, or bending.
Common Applications
- Roll-formed roofing sheets and corrugated panels
- Wall cladding and sandwich panel outer layers
- Purlins, C/Z channels, and structural sections
- Gutters, downspouts, and flashing profiles
- Lightweight steel framing for modular construction
- Storage racks, cable trays, and ventilation ductwork
Quality Assurance and Export Experience
At Hemaokang Steel, we operate with a customer-centric approach. Our mill production is monitored from raw material selection to final packing. We have a strict inspection process for thickness, width, coating mass, surface appearance, and mechanical properties, ensuring that every coil meets the requested tolerances. The company holds ISO9001 certification for quality management systems, and we ship from Qingdao Port, offering convenient logistics for both container and bulk vessel loading.
With annual export sales between US$50 million and US$100 million, we have established long-term partnerships with clients in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, and the domestic market. Our team is experienced in handling international orders, including custom packaging, weight splits, and mill test certificates. We provide timely updates during production and coordinate shipping schedules to meet your project deadlines.
Whether you are a roll forming manufacturer, a construction material distributor, or a steel trading company, this DX51D Z180 galvanized coil is a reliable and cost-effective choice for your production. We support trial orders, small quantities, and long-term supply contracts. Contact us today to request a quotation, mill test certificate, or a free sample for your evaluation. Hemaokang Steel is your committed partner for durable galvanized coil solutions.
FAQ
Q1: What does Z180 mean in the coating designation?
Z180 indicates the total weight of zinc coating on both sides of the steel sheet, measured in grams per square meter (g/m²). For Z180, the minimum coating weight per side is typically around 90 g/m², and the total is about 180 g/m². This provides moderate corrosion protection suitable for building components.
Q2: Can this coil be used for exterior roofing sheets?
Yes. DX51D with Z180 coating is commonly used for roofing and cladding in atmospheric environments. For coastal or highly corrosive areas, you may consider a higher coating weight such as Z275 or Z350, which we can supply upon request.
Q3: Does the coil have a spangle-free surface?
We offer regular spangle, minimized spangle, and zero spangle surface finishes. Zero spangle provides a smooth, uniform appearance that is ideal for painting. Please specify your preference when placing the order.
Q4: Can you provide mill test certificates?
Yes. A mill test certificate (MTC) is available for every batch, showing chemical composition, mechanical properties, coating weight, and conformity to EN 10346 or other requested standards. Additional testing such as third-party inspection can be arranged.
Q5: What is the maximum coil weight?
Typical coil weight ranges from 3 to 8 tons. However, we can adjust the coil weight according to your handling equipment and roll forming machine specifications.
Q6: What are the payment and shipping terms?
We commonly accept T/T and L/C. Port of shipment is Qingdao, China. FOB, CFR, and CIF terms are available. Shipping by container or bulk carrier can be arranged based on order volume.
Q7: Can the coils be slit into narrower widths?
Yes. We provide slitting services to produce custom widths within the range of 50mm to 1250mm, depending on your exact requirements. Slit coils are packed with edge protection for safe transport.
Q8: Is ISO9001 certification applicable to all products?
Yes. Our quality management system is ISO9001 certified, covering the production, inspection, and handling processes for all galvanized steel products. This ensures consistent quality and effective process control.
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