Customized Size Steel Round Flange

Customized Size Galvanized Steel Round Flange – Key Component for HVAC Duct & Fan Connections
Product Overview​
This high-precision galvanized steel round flange is a critical connecting component designed for HVAC ductwork and fan systems. Manufactured from durable galvanized angle or sheet steel, it ensures a secure, airtight seal between duct sections, flanges, and equipment interfaces. With a clean industrial finish, precision-drilled mounting holes, and excellent corrosion resistance, this flange is engineered for long-term reliability in commercial and industrial ventilation applications.
Key Features & Benefits​
Custom Sizes Available: Standard diameters include D315, D400, D500, D560, D630, and D710mm, with full customization support to meet project-specific requirements.
Durable Galvanized Construction: Made from zinc-coated angle or sheet steel, providing superior rust resistance and extended service life in various environmental conditions.
Precision Engineered: CNC-formed and drilled to ensure exact roundness, flatness, and consistent bolt-hole alignment for easy installation and leak-free connections.
Smooth Industrial Finish: Clean metallic surface with visible weld seams and machined edges, ready for immediate use in duct assembly.
Versatile Compatibility: Designed to connect circular ducts to fans, elbows, dampers, and other HVAC components, ensuring system integrity and airflow efficiency.
Technical Specifications​
Material: Galvanized Angle Steel / Sheet Steel
Thickness: 1.0 mm (material gauge)
Standard Diameters: D315, D400, D500, D560, D630, D710 (custom sizes available)
Finish: Galvanized (silver-gray)
MOQ: 50 pieces
Sales Unit: Kilogram (kg) – priced by weight
Lead Time: 30 days
Applications​
Circular air duct connections in HVAC systems
Fan inlet/outlet flange connections
Joining duct sections, elbows, and reducers
Industrial exhaust and ventilation system assembly
Custom fabrication projects requiring precise flange components
Why Choose Our Steel Flange?​
✅ Tailored to Your Needs: Available in standard and custom diameters to fit any duct size
✅ Corrosion-Resistant: Galvanized coating ensures durability in humid or demanding environments
✅ Precision Manufacturing: Consistently accurate dimensions for trouble-free installation
✅ Cost-Effective: Sold by weight, offering transparent pricing for small and large orders alike
Contact us today with your diameter, quantity, and project details for a customized quote and technical drawings.

Galvanized Lange Air Duct Angle   Steel Flange Key Component