Q345 Hot Dip Galvanized Round Steel Tube 30mm OD with 1-12mm Wall Thickness for Construction
Q345 galvanized round steel tubes offer superior corrosion resistance and structural integrity for construction and industrial applications. These hot-dip galvanized pipes feature uniform coating, strong adhesion, and extended service life.
| Parameter | Specifications |
|---|---|
| Material Grades | 10#, 20#, 45#, 16Mn, A53(A,B), Q235, Q345, Q195, Q215, St37, St42, St37-2, St35.4, St52.4, ST35 |
| Wall Thickness | 1mm to 12mm |
| Outer Diameter | 20mm to 508mm |
| Length | 5m to 14m (Single/Double random length, custom lengths available) |
| Standards | API 5L, ASTM A53-2007, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M-2004, ASTM A523-1996, BS 1387, BS EN10296, BS 6323, BS 6363, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, GB/T9711 |
| Surface Treatment | Hot-dip galvanized, PVC coating, black/color painting, anti-rust oil, transparent oil |
| Certifications | API ISO9001-2008, SGS, BV |
- Construction scaffolding and structural frameworks
- Fencing, greenhouse structures, and door pipes
- Low-pressure fluid transport (water, gas, oil)
- Indoor and outdoor building construction
- Industrial piping systems
Our hot-dip galvanizing process involves pickling to remove surface oxides, followed by immersion in molten zinc to create a durable alloy layer. This ensures uniform coating, excellent adhesion, and long-term corrosion protection.
All products undergo 16+ quality control processes with third-party inspection reports. Professional quality checks ensure proper specifications, material integrity, and accurate weight measurements.
Weifang Wilda Machinery Co., Ltd., established in 2003, specializes in high-precision galvanized welded steel pipes. Our facilities include sheet metal processing, welding, and metal surface treatment workshops to meet diverse customer requirements.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.