Galvanized Steel
Ductwork
Cost-effective, corrosion-resistant G90 galvanized duct from 3" to 84", with Quick-Fit® clamp-together or flanged connections for dust collection, fume and exhaust systems.
- Corrosion resistant
- Rated to 500°F
- Built to your spec
- Coating
- G90 Zinc
- Gauges
- 10–22 ga
- Diameters
- 3"–84"
Manufacturing
Capabilities
Our galvanized duct is manufactured to ASTM A527 with a G90 zinc coating, in a full range of gauges, diameters, weld styles and connection types to match your dust collection or exhaust application.
Materials
ASTM A527, G90 zinc coating
Heat Rating
Up to 500°F with no zinc breakdown
Gauges
10ga – 22ga
Diameters
3" – 84"
Welds
Spot Weld & Caulked (Full Weld on Request)
Connections
Clamp-together (rolled lip, flat lip, Tri-Clamp), flanged, or raw for butt weld
Cost-effective corrosion protection
Galvanized ducting is one of the most cost-effective ways to protect metal from corrosion.
Galvanizing coats the steel in zinc, which stops oxidation and shields the duct from rust, water and moisture, making it a good fit for both indoor and outdoor installations.
Our Quick-Fit® galvanized pipe and fittings span 3"–84" diameters in 10ga–22ga steel, with rolled-lip, flange, butt-weld, Tri-Clamp or flat-lip clamp connections.
Weld styles include spot weld and caulked, or full weld on request.
The G90 coating is rated to 500°F without breaking down, so galvanized duct handles hot fume and exhaust applications well.
As with any coated steel, a scratch deep enough to expose the base metal can start corrosion, so damaged sections should be touched up or replaced.
Galvanized or stainless?
How to choose the right material for your system. Read the full stainless vs. galvanized comparison.
| Consideration | Stainless steel | Galvanized (G90) |
|---|---|---|
| Best for | Corrosive, washdown and hygienic processes | General dust collection, fume and exhaust |
| Corrosion | Resists acids, chemicals and constant moisture | Zinc coating resists water, rust and weather |
| Weak spots | Few; no coating to wear away | Acids, alkaline dust and deep scratches that expose the steel |
| Cost | Higher upfront cost | Most cost-effective metal duct |
Handling acids or alkaline dust? Ask us before you order galvanized.
Cleaner air. Lower energy. Easier compliance.
An efficient galvanized duct system is essential for a safe, clean and productive facility. Ducting that moves dust, fumes and particulates smoothly reduces respiratory hazards for employees, improves comfort and productivity, and limits particulate releases that put commercial and industrial facilities at risk with air quality regulations.
Our galvanized duct is also built for energy efficiency. Smooth interior surfaces and an optimized design reduce air resistance and pressure drop, so your dust collection system needs less energy to run.
Effective dust removal protects the rest of your facility, too, keeping HVAC systems from clogging, extending equipment life, and reducing maintenance across the entire dust collection system.
Key advantages
- Protects HVAC systems and lowers energy costs
- Extends equipment life and reduces maintenance
- Helps meet OSHA and EPA requirements
- Modular design adapts easily to new regulations
- Holds up outdoors better than PVC or ABS duct
Where galvanized ductwork is used
Clamp-together. Reconfigurable. Built to last.
Quick-Fit® galvanized systems install faster and more easily than traditional ducting, cutting initial setup costs. Clamp-together connections mean no welding and no caulking on site.
Because the material is durable and corrosion-resistant, you'll replace and repair less over the life of the system. Efficient dust removal also reduces facility cleaning and the risk of dust-related equipment failures that disrupt production.
When your needs change, Quick-Fit® duct can be reconfigured, expanded or resized without welding, so a cleaner, safer, more productive workplace keeps paying off for years.
Galvanized duct is also made with rolled lip, flanged, raw butt weld, tri-clamp and flat lip clamp ends, so new galvanized runs can tie into the equipment and ducting already in your plant.
Faster installation
Clamp-together connections reduce setup time and cost.
No welding to change
Reconfigure, expand or resize as your facility grows.
Fewer repairs
Zinc-coated steel resists rust, water and moisture.
Less downtime
Cleaner systems mean fewer dust-related failures.
Galvanized Steel Duct Components
Zinc-coated branches, elbows, transitions and blastgates to build out wood, cement, welding fume and paint booth exhaust lines.
Let our team design your galvanized system
Adding a galvanized run to an existing collector or starting a new extraction system? Tell us the dust or fume you're capturing and where the duct will run, indoors or out, and we'll size it from 3" to 84" in the gauge and connection type your application calls for.
- Professional CAD drawing
- Exact parts list
- Installation instructions
- Budgetary project quote
System design service at no charge
Tell us about your project and our design team will follow up with next steps.
Have a full layout? Use the design questionnaire →
FAQs: Galvanized Steel Ducting
What makes galvanized steel ducting better than other materials for dust collection?
The G90 zinc coating protects the steel underneath from rust and moisture, and our galvanized duct is rated to 500°F without the zinc breaking down (zinc itself doesn't melt until 740°F). That makes it more durable outdoors and in damp environments than PVC, ABS, or uncoated steel.
What sizes and gauges does galvanized ducting come in?
Our galvanized ducting is available in diameters from 3" to 84" and gauges from 10ga to 22ga, manufactured to ASTM A527 with a G90 zinc coating.
Can Quick-Fit® galvanized ducts be reconfigured or resized after installation?
Yes. Quick-Fit® clamp-together connections let you reconfigure, expand, or resize a system without welding, which keeps downtime far lower than with welded duct.
Does galvanized duct help my dust collector run more efficiently?
Yes. The smooth interior of galvanized duct keeps air moving with a lower pressure drop, so your fan and collector use less energy to pull dust from each pickup point.
What industries commonly use galvanized steel ducting?
Woodworking, cement processing, metal fabrication, welding, paint booths, vehicle exhaust, and recycling all rely on galvanized ducting wherever dust, fumes, or particulates need to be extracted for compliance and worker safety.
Is galvanized ductwork safe for outdoor use?
Yes. The zinc coating resists water and weather, which is why galvanized duct is a common choice for outdoor dust collection runs where plastics like PVC tend to degrade.
