High-Strength Galvanized Steel Round Tube
Products Description
Galvanized Steel Round Tubes are versatile structural components offering exceptional strength, durability, and corrosion resistance through hot-dip or electro-galvanizing processes. Widely used in construction, manufacturing, furniture, and infrastructure projects, our galvanized round tubes combine structural integrity with long-term weather resistance.
Products Specifications
| Parameter | Specification |
|---|---|
| Material | Q195, Q215, Q235, S235JR, S355JR (or equivalent) |
| Standard | ASTM A53, ASTM A500, EN 10219, JIS G3444, GB/T 3091 |
| Diameter Range | 10mm – 400mm OD (Outer Diameter) |
| Wall Thickness | 0.8mm – 12.0mm |
| Length | 3m, 6m standard (custom lengths 1-12m available) |
| Galvanizing Type | Hot-Dip Galvanized (HDG) / Electro-Galvanized (EG) |
| Zinc Coating | 40-600 g/m² (typically 80-275 g/m²) |
Products Applications
Structural Grade
Wall Thickness: 2.0mm – 12.0mm
Typical Use: Building frames, support columns, trusses, industrial racks
Standards: ASTM A500 Grade B/C, EN 10219 S355J2H
Medium Duty Grade
Wall Thickness: 1.2mm – 3.0mm
Typical Use: Handrails, furniture frames, exhibition stands, machinery guards
Standards: ASTM A53, JIS G3444 STK400
Light Duty / Decorative Grade
Wall Thickness: 0.8mm – 2.0mm
Typical Use: Decorative elements, DIY projects, display systems, small fixtures
Standards: GB/T 3091, custom specifications
Products Applications
Construction & Infrastructure
Structural Framing: Building skeletons, warehouse structures
Handrail Systems: Staircases, balconies, bridges
Scaffolding Components: Standards, ledgers, transoms
Signage & Lighting: Poles, supports, brackets
Industrial & Manufacturing
Machinery Guards & Enclosures: Safety barriers, equipment covers
Material Handling: Conveyor frames, racking systems
Agricultural Equipment: Greenhouse frames, machinery parts
Utility Installations: Electrical conduit, plumbing sleeves
FAQ
Q: What's the difference between hot-dip and electro-galvanized tubes?
A: Hot-dip provides thicker, more durable coating (typically 50-85μm) with metallurgical bond. Electro-galvanized offers thinner coating (5-25μm) suitable for indoor/light outdoor use.
Q: Can galvanized tubes be painted?
A: Yes, with proper surface preparation. Use etching primer designed for galvanized surfaces, then apply top coat.
Q: How long will galvanized tubes last outdoors?
A: In moderate climates: 20-50 years. In coastal/industrial areas: 15-25 years with appropriate zinc coating thickness.
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