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Help CenterRoofing Material Hot Dipped Galvanized Steel Coil 0.30mm Thick for Corrugated Sheet Forming Projects
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Hemaokang Steel (Shandong) Co., Ltd. proudly offers this Hot Dipped Galvanized Steel Coil with a precise thickness of 0.30mm, specifically engineered for corrugated sheet forming projects. Our factory combines advanced production lines with rigorous quality control to deliver steel coils that offer excellent corrosion resistance, uniform coating, and superior formability. Whether you are a roofing sheet manufacturer, a construction contractor, or a building material distributor, this galvanized coil provides the reliable base material you need for durable and cost-effective corrugated panels.
We are a dedicated supplier based in Liaocheng, Shandong, China, with annual export value reaching US$50–100 million. Our team of 51–100 employees ensures every order is handled with care, from raw material selection to final packing. The coil is designed to meet the demanding requirements of modern roofing projects, offering excellent adhesion of the zinc layer, uniform spangle, and smooth surface finish. Below you will find a detailed breakdown of its specifications and benefits.
Key Features & Benefits
- Outstanding Corrosion Resistance: The hot-dipped galvanized coating provides a robust barrier against moisture, chemicals, and atmospheric elements, making it ideal for exterior roofing applications.
- Precise Thickness: Each coil is rolled to a uniform 0.30mm thickness, ensuring consistent profiles during corrugated sheet forming without unnecessary material waste.
- Excellent Formability: The steel substrate offers high ductility, allowing smooth bending, punching, and profiling without cracking or delamination of the zinc layer.
- Smooth Surface Finish: The galvanized surface is free from pits, scratches, and zinc dross, enabling a clean, professional appearance for finished roofing sheets.
- Uniform Coating Distribution: Advanced hot-dip galvanizing technology ensures an even zinc layer across the entire coil width, providing consistent protection from edge to edge.
- Wide Coil Width Range: Available in various widths to accommodate different corrugating machines, helping customers optimize material utilization.
- Reliable Mechanical Properties: The steel base offers excellent tensile strength and yield strength, ensuring the end products can withstand harsh weather conditions such as heavy rain, snow, and wind.
- Eco-Friendly & Recyclable: Galvanized steel is 100% recyclable, aligning with green building initiatives and sustainable construction practices.
Technical Specifications
| Thickness | 0.30 mm (available thickness range: 0.12–0.80 mm upon request) |
| Base Material | Commercial steel (CS) / Structural steel (SS) optional |
| Coating Type | Hot-dipped galvanized (zinc coating) |
| Coating Weight | Z60–Z275 g/m² (customizable) |
| Width | 600–1250 mm, or as required |
| Inner Diameter | 508 mm or 610 mm |
| Coil Weight | 3–12 tons, or as required |
| Surface Finish | Spangle, zero spangle, or minimized spangle (optional) |
Applications
This 0.30mm galvanized steel coil is primarily used for producing corrugated roofing sheets commonly seen in residential, commercial, and industrial buildings. It is also suitable for:
- Wall cladding panels
- Fence panels and temporary shelters
- Ceiling decking and partitions
- Agricultural buildings (poultry sheds, barns, storage facilities)
- Portable cabins and prefabricated houses
- General metal fabrications requiring corrosion resistance
Quality Assurance & Customization
Our production process follows strict quality control procedures under the ISO9001 management system. Every coil is tested for coating weight, thickness tolerance, and mechanical properties before shipment. We understand that every project has unique requirements, so we offer flexible customization in terms of width, coating weight, inner diameter, and packaging. If you need a specific zinc coating level or surface finish, our team is ready to assist you based on your project’s performance expectations.
Why Choose Hemaokang Steel?
With more than a decade of trading experience in the steel industry, our management team ensures that we source from reliable mills and maintain stable production capacity. Our location in Shandong province gives us convenient access to major ports, particularly Qingdao Port, ensuring efficient and cost-effective delivery to global customers. We have shipped to markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Central Asia.
We actively serve both medium and large buyers. Our annual export value of US$50–100 million reflects our strong supply capability and customer trust. We provide competitive pricing without compromising on material quality. Whether you need a single trial container or regular monthly volume, we are committed to delivering on time with complete export documentation.
Frequently Asked Questions
Q1: What is the minimum order quantity for this galvanized steel coil?
Our standard MOQ is one container (about 25 tons), but we also accept trial orders of 20–25 tons depending on stock availability. For urgent samples, please contact our sales team.
Q2: Can you provide the coil with custom widths for my corrugating machine?
Yes, we can produce custom widths from 600mm to 1250mm. Please share your exact requirement or the roller profile of your forming machine, and we will adjust production accordingly.
Q3: What coating weight is suitable for coastal environments?
For coastal or highly corrosive environments, we recommend a high zinc coating weight such as Z120 or Z180 g/m². We can provide different options based on your local weather conditions and expected service life.
Q4: How do you ensure the surface quality of the coil?
Every coil is inspected using visual checks and thickness gauges. We minimize surface defects such as roll marks, scratches, and rust stains. In addition, we apply protective edge wrapping and water-resistant packing for sea transport.
Q5: What are the packaging details for export?
Our standard export packing includes inner protective paper, moisture-proof plastic film, steel strapping, and outer sea-worthy wooden or steel pallets. We also use waterproof VCI paper for extra protection.
Q6: Do you offer pre-painted galvanized coils?
Yes, we can supply pre-painted (color coated) galvanized steel coils with various colors and paint systems. This can be discussed as part of a complete roofing material solution.
Q7: What is the lead time for production and delivery?
Standard production takes about 15–25 days after receiving the deposit and confirming details. Owing to the smooth logistics network from Qingdao Port, shipment usually takes 2–4 weeks depending on the destination.
Q8: Can I get a sample before placing a bulk order?
Yes, small samples are available for quality evaluation. The sample is free of charge for existing orders, but the logistics cost is borne by the buyer. Please contact us for detailed arrangement.
Partner with Hemaokang Steel for reliable supply, consistent quality, and responsive service. We are dedicated to ensuring that your corrugated sheet forming projects operate smoothly with high-quality galvanized steel coil. Send us your inquiry today to receive a detailed quotation and product specification sheet. We look forward to becoming your long-term steel partner.
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