Welded Carbon Galvanized Round Steel Tube 21.3-1620mm OD 0.5-30mm Thickness for Construction Applications
| Parameter | Specifications |
|---|---|
| Outer Diameter (OD) | 21.3mm - 1620mm (round) |
| Thickness | 0.5mm - 30mm |
| Length | 1-12 meters or custom requirements |
| Surface Coating | Hot dipped galvanized, 20g-275g/m² |
GB/T13793-1992, GB/T14291-2006, GB/T3091-1993, GB/T3092-1993, GB3640-88, BS1387/1985, ASTM A53/A36, EN39/EN10219, API 5L, GB/T9711.1-99
Q195-Grade B, SS330, SPC, S185, Q215-Grade C, CS Type B, SS330, SPHC, Q235-Grade D, SS400, S235JR, S235JO, S235J2, Q345-SS500, ST52
Widely used in structural applications, accessories, construction projects, machinery parts, fluid transportation systems, stress components for automotive and tractor parts, and various industrial applications.
Hot dip galvanized steel pipes undergo a comprehensive manufacturing process that ensures superior corrosion resistance and extended service life. The process includes:
- Pickling to remove surface oxides
- Cleaning in ammonium chloride or zinc chloride aqueous solution
- Hot dip galvanizing at high temperatures where molten metal reacts chemically with the iron substrate
- Formation of an alloy layer that bonds the substrate and coating together
- Large OD pipes: shipped in bulk
- Small OD pipes: bundled with steel strips
- Plastic bag protection available
- Custom packaging according to customer requirements
Within 7 working days after receiving deposit payment
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