OEM ODM Galvanized Round Steel Tube Q235 Q345 ERW 21.3-406.4mm OD 1.2-20mm Wall Thickness
High-quality OEM/ODM galvanized round steel tubes manufactured using Electric Resistance Welding (ERW) technology. Available in Q235 and Q345 mild steel grades with hot-dip galvanized surface treatment for superior corrosion resistance.
| Parameter | Specifications |
|---|---|
| Outer Diameter | 21.3mm - 406.4mm |
| Wall Thickness | 1.2mm - 20mm |
| Length | 1-12 meters |
| Zinc Coating | 200-600g/m² (20-83μm) |
| Steel Grades | Q195, Q235A-B, Q345A-E, 20#, 10#, 16Mn, ASTM A36, ASTM A500, ASTM A53, ASTM 106, SS400, St37, St52, S235JR, S355TRH |
| Standards | GB/T 3091-2001, GB/T13912-2002, BS 1387, ASTM F1083 |
| Pipe Ends | Plain, beveled, threaded, socket with holes, with PVC clamp/coupling |
High-frequency electric resistance welding (ERW) with pre-galvanized, hot-dipped galvanized, or hang-planting galvanization techniques. Both inner and outer weld seams can be removed upon request.
- Bared finish
- Black painted (varnish coating)
- Galvanized coating
- PVC coating
- Transparent anti-rust oil
- Custom treatments available
- Special sizes and designs according to requirements
- Necking down and hole punching services
- OEM and ODM manufacturing
- Custom pipe ends and fittings
- Fencing and greenhouse construction
- Door pipe systems
- Low pressure liquid, water, gas, and oil pipelines
- Indoor and outdoor building construction
- Scaffolding systems
All products undergo 16+ quality control processes with third-party inspection available (BV, SGS). Certified with API, ISO9001-2008 standards.
Standard delivery: 10 days from stock, 15-20 days for production orders. Professional packaging with PVC coating or bundle wrapping to ensure safe transportation.
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 orders, with additional capabilities in sheet metal processing, welding, and metal surface treatment.
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