Galvanized Square Tube
Hot-Dip Galvanized · High-Strength Square Section · Multi-Application Compatible
Overview
Galvanized square tubes are precision-manufactured from high-quality carbon steel and treated with hot-dip galvanizing, providing excellent corrosion resistance and structural strength. Widely used in building construction, agricultural greenhouses, storage racks, fencing, and guardrails.
Key Advantages
Excellent Corrosion Resistance
Hot-dip galvanized with uniform, dense zinc layer — effectively resists atmospheric, rain, and mild salt-alkali corrosion. Outdoor service life 25+ years, significantly reducing long-term maintenance costs.
High-Strength Structure
Premium carbon steel base, square cross-section with even load distribution and outstanding bending/torsion resistance — safely applicable to various load-bearing structural scenarios.
Full Size Range, Flexible Processing
Wide dimensional coverage with custom fabrication available: cutting, welding, drilling, and other secondary processing to suit any project requirement.
Specifications
- Material
- Q235B, Q355B premium carbon steel
- Corrosion Protection
- Hot-dip galvanized, zinc layer ≥85μm
- Section Size
- 20×20mm – 300×300mm (custom available)
- Wall Thickness
- 1.5mm – 10mm
- Standard Length
- 6m, 12m (cut-to-length available)
- Standards
- GB/T 6728, GB/T 13912
- Certifications
- ISO 9001, CE, SGS
Applications
Building & Construction
- Steel frames, building fences, door/window frames
Agriculture
- Greenhouse frames, farm fencing
Industrial & Storage
- Storage racks, equipment supports, factory fencing
Other Applications
- Furniture frames, decorative components, PV mounting supports
Why Choose Us
- 01
Factory Direct: No middlemen — competitive bulk pricing
- 02
Strict QC: MTC and inspection report provided with every batch
- 03
Custom Services: Size, wall thickness, zinc layer, and packaging customized on demand
- 04
Complete export services with global multi-modal logistics support
Need a Quote or Technical Advice?
Our engineering team will respond within 24 hours.