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Help CenterGalvanized Coil for HVAC Ducting 0.5-1.0mm G90 Standard Compliant
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As a leading manufacturer at Hemaokang Steel (Shandong) Co., Ltd., we proudly present our Galvanized Coil for HVAC Ducting in thickness range 0.5–1.0mm, fully compliant with G90 standard. Established in 2025 with an annual export value exceeding US$50 million, our facility in Liaocheng, Shandong, China operates with 51–100 skilled professionals, ensuring consistent quality and reliable supply. This galvanized coil is specifically engineered for HVAC ducting applications, offering excellent corrosion resistance, formability, and weldability to meet the demanding requirements of ventilation and air conditioning systems.
Our product is manufactured using premium hot-dip galvanized steel, with a uniform zinc coating of G90 (approximately 50–60 g/m² per side), providing long-lasting protection against rust and environmental exposure. The material is available in thicknesses from 0.5mm to 1.0mm and widths from 600mm to 1500mm, making it highly adaptable to various duct designs. Each coil passes rigorous quality control checks, including tensile strength, elongation, and coating adhesion tests, ensuring dimensional stability and surface smoothness.
Key Features & Benefits
- Superior Corrosion Resistance: G90 zinc coating provides excellent protection against moisture and chemicals, extending the lifespan of HVAC ducts.
- Excellent Formability: The steel substrate offers good ductility, allowing easy bending, folding, and forming without cracking.
- Weldability & Joinability: Compatible with common welding and mechanical joining methods used in duct fabrication.
- Consistent Thickness Tolerance: Maintained within ±0.05mm, ensuring uniform performance and ease of installation.
- Smooth Surface Finish: Free from defects like spangles, scratches, or oil spots, ideal for visible ductwork.
- Customizable Specifications: Width, thickness, and coil weight can be tailored to project requirements.
- Eco-Friendly Production: Our manufacturing process complies with ISO9001 quality management standards, minimizing waste and energy consumption.
Technical Specifications
| Parameter | Specification |
|---|---|
| Material Grade | DX51D+Z, SGCC, Q195 (or equivalent) |
| Thickness Range | 0.5 – 1.0 mm |
| Zinc Coating | G90 (50–60 g/m² per side) |
| Width | 600 – 1500 mm |
| Coil Inner Diameter | 508 mm / 610 mm (standard) |
| Coil Weight | 3 – 8 tons per coil |
| Surface Treatment | Chromated, oiled, passivated, anti-fingerprint (optional) |
| Standard Compliance | ASTM A653, JIS G3302, ISO9001 |
Our galvanized coil is specifically designed for HVAC ducting applications, including air handling units, ventilation ducts, exhaust systems, and insulated panels. The material's resistance to corrosion ensures that ducts maintain their integrity even in humid or chemically aggressive environments, reducing maintenance costs and improving indoor air quality. Additionally, the smooth surface finish minimizes air friction, contributing to energy efficiency in HVAC systems.
Why Choose Hemaokang Steel?
- ISO9001 Certified Quality: Our production processes are audited and certified, ensuring consistent quality across all batches.
- Large Production Capacity: With an annual export value of US$50–100 million, we can handle bulk orders with short lead times.
- Global Reach: Our products are exported to North America, South America, Europe, Asia, Africa, Oceania, and the Middle East, meeting diverse international standards.
- Professional Team: 51–100 experienced employees dedicated to R&D, production, quality control, and customer service.
- Flexible Customization: We offer custom thickness, width, coating weight, and packaging options to suit your specific ducting project.
In addition, our galvanized coils are packaged with anti-corrosion paper, steel strapping, and waterproof wrapping to ensure safe transit. We provide mill test certificates (MTC) and third-party inspection reports upon request, giving you full traceability and peace of mind.
Trust & Reliability
Since our establishment in 2025, Hemaokang Steel has grown rapidly, achieving an annual export value exceeding US$50 million. Our commitment to quality and customer satisfaction has earned us a strong reputation across global markets. We understand that HVAC ducting requires materials that are both durable and cost-effective, and our G90 galvanized coil delivers exactly that. Backed by our ISO9001-certified quality management system, you can rely on us for consistent supply, competitive pricing, and technical support.
We invite you to experience the difference of working with a dedicated steel supplier. Whether you need a small trial order or a large container shipment, our team is ready to provide prompt service. Contact us today for a quote or sample to test the quality of our galvanized coil for your HVAC ducting projects.
FAQ – Frequently Asked Questions
- What is the minimum order quantity (MOQ) for this galvanized coil? Our standard MOQ is 5 tons per size, but we can accommodate smaller trial orders for new customers. Please contact our sales team for details.
- Can I get a sample before placing a bulk order? Yes, we offer free samples (up to 1kg) with the customer covering shipping costs. Samples are available within 7 days after request.
- Is this product suitable for spiral duct manufacturing? Absolutely. The material's excellent formability and uniform thickness make it ideal for spiral duct forming machines.
- What is the typical lead time for delivery? For standard specifications, delivery is 15–20 days after order confirmation. Custom orders may take 20–30 days, depending on quantity.
- Do you provide third-party inspection certificates? Yes, we can arrange SGS, BV, or other third-party inspections at the buyer's cost. Mill test certificates are included with each shipment.
- Can I customize the width or thickness beyond the listed range? Yes, we can produce coils with thickness from 0.3mm to 2.0mm and width from 500mm to 1800mm. Please inquire for custom requirements.
- Is the G90 zinc coating equivalent to Z275 or Z180? G90 corresponds to approximately 275 g/m² total (both sides), similar to Z275. However, we recommend checking the specific industry standard for your region.
- What payment terms do you accept? We accept T/T (30% deposit, 70% before shipment) and L/C at sight. Other terms may be negotiable based on order value and customer history.
For more information, please contact our sales team at Hemaokang Steel. We look forward to being your reliable partner for HVAC ducting materials.
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