Introduction
Galvanized steel round tubing is a circular hollow steel section coated with a protective zinc layer to enhance corrosion resistance. It is widely used in construction, fencing, structural frameworks, agriculture, and mechanical applications.
| Tolerance | ±1% |
| Certificate | API , BIS, SABS, sirm, JIS, ISO9001, Ce, Bsi,Rohs,Pvoc,SONCAP,tisi,KS,GS |
| Alloy Or Not Non-Alloy | Non-Alloy |
| Technique | Hot-dipped galvanized |
| Thickness | 1.2-15.0mm can be customized |
| Length | 6m, 12m, can be customized |
| Outer Diameter | 6-2500mm, can be customized |
| Application | Greenhouse construction, Architecture, Bridge, boiler, shipbuilding, power plant, pipeline |
Material & Chemical Compostion
Common Specifications for Galvanized Round Pipes (According to GB/T 3091-2015 Standard, 6-meter Fixed Length)
| Specification (Outer Diameter × Wall Thickness, mm) | Theoretical Weight (kg/pcs) | Common Materials | Zinc Layer Thickness | |
| 20×1.5 | 3.96 | Q235B | ≥65μm | |
| 25×1.8 | 6.31 | Q235B | ≥65μm | |
| 32×2.0 | 8.91 | Q235B | ≥65μm | |
| 40×2.5 | 13.42 | Q235B | ≥65μm |
Additional Explanation
Outer diameter tolerance: For outer diameters ≤ 114mm, the tolerance is ±0.5mm; for outer diameters > 114mm, the tolerance is ±1%.
The fixed length can be customized as 9m or 12m. Special wall thickness can be produced as per demand.
The theoretical weight is calculated based on the steel density of 7.85g/cm³. The actual weight may slightly fluctuate due to the thickness of the galvanized layer.
Features
- Zinc Coating for Corrosion Protection
The zinc coating acts as a "protective shield," enabling the tube to withstand harsh environments (humidity, salt spray, industrial fumes) for 20-30 years without rust-far longer than uncoated carbon steel tubes.
- Strong Load-Bearing & Impact Resistance
Made of high-quality Q235/Q345 carbon steel, the tube retains excellent tensile strength (≥375MPa) and ductility. The round structure distributes pressure evenly, making it suitable for load-bearing scenarios.
- Good Fabrication and Installation Performance
The tubing can be easily cut, welded, drilled, or assembled, allowing flexible use in construction and manufacturing projects.
Custom Services
- Custom Diameter and Wall Thickness
Galvanized steel round tubing can be supplied in different outer diameters and wall thicknesses according to project requirements.
- Custom Length Options
Standard and custom pipe lengths are available to meet different construction and fabrication needs.
- Additional Processing Services
Services such as cutting, drilling, threading, or basic fabrication can be provided according to design requirements.
FAQs
1. What is the difference between galvanized round tubing and black steel tubing?
Galvanized tubing has a zinc coating that protects the steel from corrosion, while black steel tubing has no protective coating.
Galvanized tubing has a zinc coating that protects the steel from corrosion, while black steel tubing has no protective coating.
2. What galvanizing methods are used for round tubing?
Common methods include hot-dip galvanizing and pre-galvanizing, each offering different levels of corrosion protection.
Common methods include hot-dip galvanizing and pre-galvanizing, each offering different levels of corrosion protection.
3. How is galvanized steel round tubing typically packaged?
It is usually bundled and secured with steel straps and protective materials for safe transport and handling.
It is usually bundled and secured with steel straps and protective materials for safe transport and handling.
Hot Tags: galvanized steel round tubing, China galvanized steel round tubing manufacturers, suppliers, factory, astm a519, 2 black steel pipe, stainless steel drain, 1 2 inch steel pipe, low carbon steel pipe, sch 40 galvanized pipe
