Galvanized Steel Square Tube A500 Grade B - 20x20mm to 500x500mm Sizes with 1.2-20mm Wall Thickness
High-quality galvanized steel square tubes manufactured to international standards for construction, structural applications, and greenhouse frameworks. Available in various sizes with multiple coating options for superior corrosion resistance.
| Parameter | Specifications |
|---|---|
| Square Pipe Sizes | 20×20mm to 500×500mm |
| Wall Thickness | 1.2mm to 20mm |
| Standard Length | 2.0m to 12m |
| Zinc Coating | Pre-galvanized: 40-80g/m² | Hot-dipped: 200-600g/m² |
| Material Grade | Equivalent Standards |
|---|---|
| Q195 | S195 / A53 Grade A |
| Q235 | S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2 |
| Q355 | S355JR / A500 Grade B Grade C |
- EN10219, EN10210
- GB/T 6728
- JIS G3466
- Construction and building materials
- Structural steel frameworks
- Solar structure components
- Fence posts and security systems
- Greenhouse frame structures
- Fluid transportation systems
- Automotive and machinery parts
Our products undergo 16+ quality control processes and are backed by comprehensive certifications including:
- ISO 9001 Quality Management System
- ISO 18001 Occupational Health & Safety
- ISO 14001 Environmental Management
- CE Marking for European compliance
- OD 300mm and below: Hexagonal seaworthy bundles with steel strips and nylon slings
- Above OD 300mm: Bulk packaging or custom arrangements
- Standard container loading: 25 tons/container
- Maximum lengths: 5.8m (20" container), 11.8m (40" container)
Our production utilizes advanced ERW (Electric Resistance Welding) and EFW (Electric Fusion Welding) techniques with both cold-rolled and hot-rolled options to meet diverse application requirements.
FOB, CFR, CIF, EXW, FCA
T/T (Telegraphic Transfer), LC (Letter of Credit)
15-45 days after receiving advanced payment, depending on order quantity
Southeast Asia, South Asia, Middle East, Europe, Middle & South America, Africa, and Oceania
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.