SS330 SS400 S235JR Q195 Q235 Q345 Galvanized Steel Pipe 0.6-25mm Thickness Custom Square Rectangular Sizes
Zhengde galvanized steel pipes are available in both cold-galvanized and hot-dip galvanized variants. According to shape classification, they include galvanized round pipes and galvanized square/rectangular pipes. The hot-dip galvanizing process involves pickling the steel pipe to remove surface iron oxide, followed by cleaning with ammonium chloride or zinc chloride solutions before hot-dip coating. This method ensures uniform coating, strong adhesion, and extended service life.
| DN | Outer Diameter (mm) | Ordinary Steel Pipe | Thickened Steel Pipe |
|---|---|---|---|
| 6 | 10.2 | 2.0mm thickness, 0.40kg/m (welded), 0.4256kg/m (galvanized) | 2.5mm thickness, 0.47kg/m (welded), 0.50kg/m (galvanized) |
| 8 | 13.5 | 2.3mm thickness, 0.62kg/m (welded), 0.64kg/m (galvanized) | 2.75mm thickness, 0.73kg/m (welded), 0.75kg/m (galvanized) |
| 10 | 17 | 2.3mm thickness, 0.82kg/m (welded), 0.84kg/m (galvanized) | 2.75mm thickness, 0.97kg/m (welded), 1.00kg/m (galvanized) |
| 15 | 21.3 | 2.8mm thickness, 1.26kg/m (welded), 1.30kg/m (galvanized) | 3.25mm thickness, 1.45kg/m (welded), 1.49kg/m (galvanized) |
| 20 | 26.8 | 2.8mm thickness, 1.63kg/m (welded), 1.68kg/m (galvanized) | 3.50mm thickness, 2.01kg/m (welded), 2.07kg/m (galvanized) |
| 25 | 33.5 | 3.3mm thickness, 2.42kg/m (welded), 2.49kg/m (galvanized) | 4.00mm thickness, 2.91kg/m (welded), 3.00kg/m (galvanized) |
| 32 | 42.3 | 3.3mm thickness, 3.13kg/m (welded), 3.22kg/m (galvanized) | 4.00mm thickness, 3.78kg/m (welded), 3.89kg/m (galvanized) |
| 40 | 48 | 3.5mm thickness, 3.84kg/m (welded), 3.96kg/m (galvanized) | 4.25mm thickness, 4.58kg/m (welded), 4.72kg/m (galvanized) |
| 50 | 60 | 3.5mm thickness, 4.88kg/m (welded), 5.03kg/m (galvanized) | 4.50mm thickness, 6.16kg/m (welded), 6.34kg/m (galvanized) |
| 65 | 75.5 | 3.8mm thickness, 6.64kg/m (welded), 6.84kg/m (galvanized) | 4.50mm thickness, 7.88kg/m (welded), 8.12kg/m (galvanized) |
| 80 | 88.5 | 4.0mm thickness, 8.34kg/m (welded), 8.59kg/m (galvanized) | 4.75mm thickness, 9.81kg/m (welded), 10.10kg/m (galvanized) |
| 100 | 114 | 4.0mm thickness, 10.85kg/m (welded), 11.18kg/m (galvanized) | 5.00mm thickness, 13.44kg/m (welded), 13.84kg/m (galvanized) |
| 125 | 140 | 4.5mm thickness, 15.04kg/m (welded), 15.49kg/m (galvanized) | 5.50mm thickness, 18.24kg/m (welded), 18.79kg/m (galvanized) |
| 150 | 165 | 4.5mm thickness, 17.81kg/m (welded), 18.34kg/m (galvanized) | 5.50mm thickness, 21.63kg/m (welded), 22.28kg/m (galvanized) |
Galvanized round pipes are common building materials used for indoor/outdoor piping, electrical wiring, ventilation systems, and mechanical structures. They offer excellent corrosion resistance, wear resistance, high strength, and easy installation. Applications include:
- Construction: Water/electricity pipes, HVAC systems, fire pipes
- Mechanical structures: Machine parts, automotive components, steel frameworks
- Furniture manufacturing: Table chairs, bed frames, and structural supports
Galvanized square pipes provide superior corrosion protection and are suitable for:
- Construction: Underground pipelines, building structures, decorative materials
- Electrical: Power lines, communication cables, generator sets
- Machining: Machine tools, automotive manufacturing, food processing equipment
- Public services: Highway tunnels, green belts, park infrastructure
Our steel pipes are manufactured in strict compliance with national production standards and quality certifications. We ensure surface quality without cracks or bubbles, with complete product identification. Regular maintenance extends service life and prevents rust formation.
Shandong Zhengde Metal Manufacturing Co., Ltd. is an integrated enterprise specializing in hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, and various metal products. With five production bases across Binzhou, Liaocheng, Wuxi, Tianjin, Jinan, and Tai'an, we operate over 100 production lines with 4 nationally recognized laboratories and multiple technical centers. Our products are exported to more than 50 countries worldwide.
Q1: Can you send samples?
A: Yes, we provide free samples with express shipping worldwide.
Q2: What product information do I need to provide?
A: Please provide grade, dimensions (length, width, thickness), surface treatment requirements, and quantities.
Q3: Can you assist with first-time steel imports?
A: Absolutely, we have agents to coordinate shipment arrangements.
Q4: What ports of shipment are available?
A: Standard shipments from Shanghai, Tianjin, Qingdao, Ningbo ports, with custom options available.
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