ASTM Galvanized Steel Round Tube 20-508mm OD 1-12mm Wall Thickness for Building Construction
High-quality galvanized steel round tubes manufactured to ASTM standards with CE and ISO certifications. Available in pre-galvanized and hot-dipped galvanized options with varying zinc coatings for different application requirements.
Manufactured from hot-dipped galvanized steel strip with zinc coating of 40-60g/sm. Available thickness range: 0.7mm-4.5mm.
Features thicker zinc coating (200-500g/sm) achieved by dipping black steel pipe into zinc pool.
| Parameter | Specifications |
|---|---|
| Product Name | Hot Dip Galvanized Round Steel Pipe / GI Pipe Pre Galvanized Steel Pipe |
| Material | 10#, 20#, 45#, 16Mn, A53(A,B), Q235, Q345, Q195, Q215, St37, St42, St37-2, St35.4, St52.4, ST35 |
| Wall Thickness | 1mm-12mm |
| Outer Diameter | 20mm-508mm |
| Length | 5m-14m, 5.8m, 6m, 10m-12m, 12m or custom requirements |
| 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 |
| Grade | 10#-45#, 16Mn, A53-A369, Q195-Q345, ST35-ST52, Grade A, Grade B, Grade C |
| Technique | Hot Dip Galvanized Round Steel Pipe |
| Surface Treatment | Galvanized, PVC coating, black and color painting, transparent oil, anti-rust oil, or custom requirements |
- Fencing and greenhouse construction
- Low pressure liquid, water, gas, and oil pipelines
- Indoor and outdoor building construction
- Scaffolding systems
- Machinery manufacturing and automotive industry
- Railway and highway guardrail systems
- Container skeleton and steel furniture
- Agricultural vehicles and equipment
Our products undergo 16+ quality control processes and are backed by API, ISO9001-2008, SGS, and BV certifications. Professional inspection ensures accurate weight and dimensional specifications.
Weifang Wilda Machinery Co., Ltd. founded in 2003, specializes in high-precision galvanized welded steel pipes. We produce round, square, and special-shaped steel pipes according to customer specifications, supported by sheet metal processing, welding, and metal surface treatment workshops.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.