Our premium Welded Tubes are engineered for superior strength, reliability, and versatility, serving as a cornerstone for modern industrial infrastructure. By utilizing advanced rolling and welding techniques—including Electric Resistance Welding (ERW) and Submerged Arc Welding (SAW)—we transform high-grade metal sheets into precision-engineered cylindrical shapes that meet rigorous global engineering standards.
Specializing in both JCOE and Coil Pipe processes, we provide a comprehensive range of diameters and wall thicknesses designed to withstand high pressure and resist corrosion. From critical fluid transportation in petroleum and gas pipelines to robust structural supports in shipbuilding and marine engineering, our welded tubes offer an optimal balance of mechanical performance and cost-efficiency.
Detailed Parameters
| JCOE Diameter Range | 300mm - 2500mm | JCOE Plate Thickness | 10mm - 90mm |
|---|---|---|---|
| JCOE Max Length | Up to 16,000mm | Max Weld Seams | Two longitudinal seams (for 1000-2500mm) |
| Coil Pipe Diameter | 1100mm - 3000mm | Coil Pipe Thickness | Up to 180mm |
| Coil Pipe Max Length | Up to 4,000mm | Tube Shapes | Round, Square, Rectangular |
| General Wall Thickness | 1mm - 20mm | Standard Lengths | 6m / 12m (Custom available) |
Key Advantages
High Pressure Resistance
Tight seams and uniform structures ensure minimal leakage and long-term durability in fluid transport.
Cost-Effectiveness
Offers a more economical alternative to seamless tubes for general-purpose and structural applications.
Customizable Dimensions
Flexible production of diameters, wall thicknesses, and lengths to meet specific engineering blueprints.
Structural Stability
High strength-to-weight ratio makes them ideal for scaffolding, columns, and chassis frameworks.
Surface Versatility
Compatible with galvanization, powder coating, and painting for enhanced corrosion resistance.
Industry Adaptability
Widely used across petroleum, shipbuilding, automotive, and power generation sectors.
Product Gallery
Management Platforms
Inventory Control
Real-time tracking of raw metal sheets and finished welded tubes across all warehouse locations.
Precision Calibration
Rigorous monitoring of forming machines (up to 16,000 tons) to ensure diameter accuracy.
Quality Assurance
Strict weld seam inspection using ERW and SAW standards to prevent leakage and failure.
Order Tracking
Transparent workflow from plate rolling to final coating and shipping logistics.
Material Sourcing
Strategic procurement of high-grade alloys to ensure base material consistency.
Custom Engineering
Collaborative design platform to determine optimal wall thickness for specific load requirements.
Investment Return Comparison
| Feature | Welded Tubes | Seamless Tubes |
|---|---|---|
| Production Cost | Low to Moderate | High |
| Sizing Flexibility | High (Large Diameters) | Limited by Billet Size |
| Pressure Capacity | Moderate to High | Very High |
| Wall Uniformity | Excellent | Superior |
| Lead Time | Faster Production | Slower Manufacturing |
Frequently Asked Questions
Welded tubes are widely used for transporting fluids and gases in oil and gas pipelines, acting as structural supports in construction (scaffolding, columns), and serving as chassis frameworks in the automotive industry.
The JCOE process uses heavy forming machines to create pipes from plates (up to 2500mm diameter), while the Coil Pipe process specializes in rolling sheets into tubes (up to 3000mm diameter) with higher thickness capabilities up to 180mm.
Yes, when manufactured using submerged arc welding (SAW) or electric resistance welding (ERW) and properly coated, welded tubes are highly reliable for high-pressure water supply and chemical processing.
For structural engineering and general-purpose frameworks, welded tubes are typically preferred due to their cost-effectiveness, ease of production in large sizes, and sufficient strength for the application.
We offer round tubes (diameters from 10mm to over 600mm), as well as square and rectangular profiles (typically 20x20mm to 400x200mm) with wall thicknesses from 1mm to 20mm.
We employ various finishing processes including galvanization, specialized industrial coatings, and painting to protect the metal from harsh marine environments and prevent oxidation.
