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Galvanized pipe for HVAC | Air Duct & Ventilation Systems
Galvanized pipe for HVAC | Air Duct & Ventilation Systems
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Galvanized Pipe for HVAC | Air Duct & Ventilation Systems
Product Specifications
| Parameter | Details |
|---|---|
| Material | Hot-dip galvanized steel (G-90 coating) |
| Hardness (Rockwell) | 70-85 HRB (Varies by gauge thickness) |
| Thickness | 0.8–2.5 mm (Customizable up to 4 mm for heavy-duty applications) |
| Diameter Range | 80–1250 mm (Round ducts); Custom rectangular profiles available |
| Coating Type | Zinc coating (275–600 g/m²) for enhanced corrosion resistance |
| Temperature Range | -30°C to 350°C (Suitable for extreme HVAC environments) |
| Standards | ASTM A53, BS 1387, SMACNA, ISO 1461 |
Key Attributes
- Structural Strength: Four-ply spiral lockseam construction ensures rigidity and reduces joint requirements.
- Durability: Zinc coating prevents rust, ideal for high-humidity and industrial environments.
- Versatility: Compatible with HVAC, dust removal, and ventilation systems.
- Low Maintenance: Smooth interior reduces friction loss and minimizes debris accumulation.
Mechanical Properties
Tensile Strength
Galvanized pipes for HVAC systems exhibit a tensile strength of 300–550 MPa, depending on steel grade and gauge. This ensures resistance to internal pressure (up to 16 bar) and external loads, making them suitable for high-velocity air conditioning and industrial ductwork.
Bend Strength
With a bend resistance approximately 2.5× higher than longitudinal lockseam pipes, our galvanized ducts maintain structural integrity even in complex installations. This is critical for long-span ductwork in commercial buildings.
Identification & Marking
Pipes are laser-etched or stamped with:
- Manufacturer’s logo
- ASTM/BS/ISO standard code (e.g., ASTM A53 for pressure applications)
- Diameter, thickness, and coating weight
- Batch number for traceability.
Weight Calculation Formula
Calculate pipe weight using:
Example: For a 100 mm OD pipe with 2.5 mm wall thickness:
.
Stainless Steel Rusting: Causes & Prevention
While stainless steel is corrosion-resistant, improper handling can lead to rust due to:
- Chloride Exposure: Coastal or de-icing environments degrade passive oxide layers.
- Mechanical Damage: Scratches or welding defects expose underlying iron to oxidation.
- Chemical Contamination: Contact with carbon steel tools introduces iron particles.
Prevention: Use passivation treatments and avoid abrasive cleaners.
Applications Beyond HVAC
- galvanized pipe hand railing: Ideal for outdoor staircases and balconies due to weather resistance.
- galvanized pipe handrail: Combines durability with aesthetic flexibility for public infrastructure.
- galvanized pipe repair clamp: Quick-fit clamps with PVC/EPDM gaskets for emergency leak sealing.
Why Choose Our Stainless Steel?
- Certified Quality: Third-party audited (ISO 9001, CE) with traceable material sourcing.
- Custom Solutions: Tailored dimensions, coatings, and fittings for unique project needs.
- Eco-Friendly: Recyclable materials and low-VOC production processes.
- Global Compliance: Meets ASTM, BS, and EN standards for international projects.
- Lifetime Support: 20-year warranty and 24/7 technical assistance.
