Product Introduction
2x2 galvanized square tubing is made of high-quality carbon structural steel, produced through high-frequency welding and hot-dip galvanizing. It combines excellent structural strength, dimensional accuracy and long-term anti-corrosion performance, making it an ideal profile for engineering structures and equipment frames.
| Grade | Q195, Q215, Q235, Q345, Q355, SGCC, dx51d etc. | |||
| Standard | ASTM, GB, BS, EN, DIN | |||
| Thickness | 1.5mm-12mm, can be customized | |||
| Length | 1-12m, can be customized | |||
| Size | 20x20mm - 400x400mm,can be customized | |||
| Surface Treatment | galvanized or as required | |||
| Tolerance | ±1% | |||
| MOQ | 1 Ton | |||
| Application | tructure Pipe, Construction, Steel structure engineering, Curtain wall construction etc. | |||
Material & Chemical Composition
| Item | Base Material | Carbon (C) | Manganese (Mn) | Silicon (Si) | Sulfur (S) | Phosphorus (P) | Zinc Coating |
| Specification |
Q235B (Q195, Q355B available on request) |
0.12%–0.20% | 0.30%–0.70% | 37*37*102 | ≤ 0.35% | ≤ 0.035% |
Hot-dip galvanized, Zn ≥ 98.5% |
| Item | Yield Strength | Tensile Strength | Elongation | Zinc Coating Weight | Zinc Coating Thickness | Bending Performance |
| Q235B Standard | ≥ 235 MPa | 370–500 MPa | ≥ 26% | ≥ 275 g/m² | ≥ 65 μm | No cracks |
Manufacturing Process Advantages
Superior Anti-Corrosion Manufacture
Hot-dip galvanizing manufacture forms a dense zinc layer, isolating corrosion and extending service life with low maintenance.
Precision Forming Manufacture
Precision forming ensures regular shape, uniform wall thickness and small tolerance, facilitating quick installation.
Reliable Bonding Manufacture
Manufacture ensures tight combination of zinc layer and steel, no peeling, with strong wear and impact resistance.
Execution Standards & Certifications
Cold-formed hollow sections for structure: GB/T 6728-2017
Carbon structural steels: GB/T 700-2006
Hot-dip galvanizing: GB/T 13912, ISO 1461
Compatible with: ASTM A500, EN 10219
Supporting Documents: Material certificate, galvanizing test report, quality certificate
Product Advantages
Anti-Corrosion & Durable: Uniform and firm hot-dip zinc coating, weather-resistant, long service life.
Good Weldability: Easy to cut, drill, weld and bend, friendly for fabrication.
High Dimensional Accuracy: Regular section, tight tolerances, easy for installation.
Cost-Effective: Reliable material, suitable for large-scale structural applications.
Wide Applicability: Suitable for indoor and outdoor use, including humid and mildly corrosive environments.
Typical Applications
Building & Construction: Steel structure frames, curtain wall keels, roof supports, stair railings
Equipment Manufacturing: Machine frames, equipment bases, automation frames
Infrastructure: Road guardrails, billboard supports, bus shelters
Agriculture: Greenhouse frames, breeding shed frames
Logistics & Storage: Shelf columns, beams, logistics racks
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