Galvanized Steel Round Pipe/Tube
ERW base pipe hot-dip galvanized with ≥600g/㎡ zinc coating (BS 1387/ASTM A53 compliant). Dual corrosion protection withstands 1000hrs salt spray (ISO 9227) for 20-30 year service life. |
Product Name: Continuous Hot-Dip Galvanized Steel Pipe
Overview
ERW base pipe hot-dip galvanized with ≥600g/㎡ zinc coating (BS 1387/ASTM A53 compliant). Dual corrosion protection withstands 1000hrs salt spray (ISO 9227) for 20-30 year service life.
Parameter | Welded Pipe | Seamless Pipe |
---|---|---|
Diameter | ⌀21.3-165mm | ⌀10-114mm |
Wall Thickness | 1.8-6.0mm (±0.15mm) | SCH40-SCH80 (2.0-8.6mm) |
Zinc Coating | ≥600g/㎡ (avg) | ≥500g/㎡ (int≥400g/㎡) |
Material Grade | Q235B / S235JR | 20# / ST52.0 |
Thread Standard | BS 21 / ISO 7-1 (opt.) | NPT/BSPT (opt.) |
Salt Spray | 1000h white rust≤5% | 800h red rust≤5% |
Tensile Strength | ≥370MPa | ≥480MPa |
Bend Test | 90° no crack (D=3a) | 180° no crack (D=4a) |
1. Triple Protection
Sacrificial anode
Fe-Zn alloy barrier
Pure zinc outer layer
2. Global Standards
Fire protection: BS EN 10255
Construction: AS/NZS 1163
Oil & Gas: API 5L PSL1
3. Installation Ready
Pre-threaded ends (1:16 taper)
Beveled ends for socket welding
4. Universal Applications
Marine: Zinc+epoxy coating
High-temp: Aluminized zinc (≤300℃)