Q235 galvanized steel square tubing is a high-quality carbon steel product known for its excellent corrosion resistance, durability, and versatility. The hot-dip galvanized coating ensures long-lasting protection against rust and environmental exposure, making it suitable for both indoor and outdoor applications. With superior formability, weldability, and structural strength, this tubing is ideal for a wide range of industrial and commercial uses.

Key Specifications
| Parameter | Details |
|---|---|
| Material | Q235 Carbon Steel |
| Shape | Square |
| Dimensions | 16×16 mm – 250×250 mm (customizable) |
| Wall Thickness | 0.4 – 6.0 mm |
| Length | 6 m or customized |
| Surface | Hot-dip galvanized, black, painted, or as per customer requirement |
| End Finish | Plain end, beveled end, threaded end |
| Standard | EN10210, EN10219, DIN17100, ASTM A36, JIS G3466 |
| Technology | Hot-rolled, welded (ERW) |
Advantages
Excellent corrosion and rust resistance for outdoor and high-humidity environments
High strength-to-weight ratio, suitable for structural and mechanical applications
Easy to fabricate: cutting, welding, bending, punching without damaging the galvanized coating
Cost-effective and low maintenance compared to non-galvanized alternatives
Long service life, environmentally friendly, 100% recyclable
Applications
Q235 galvanized steel square tubing is widely used across industries, including:
Construction: Roof trusses, columns, beams, gutters, flashing, and downpipes; offers durable, weather-resistant structural support
Furniture: Outdoor furniture like benches, lounge sets, and frames; resistant to rust and corrosion while maintaining a premium appearance
Appliance Parts: Components for washing machines, dryers, and refrigerators; utilizes formability and rust resistance for longevity
Automotive Parts: Fender panels, brackets, and structural elements exposed to weather conditions requiring protection against corrosion
Packaging & Delivery
Bundled with steel straps and wrapped in plastic film for protection
Delivered in standard export packaging suitable for sea or land transport
Custom lengths, coatings, and dimensions available per customer request




















