In engineering and construction projects requiring robust, reliable, and cost-effective piping for modest flow applications, the choice of material and manufacturing process is critical. This is where the specialized category of Small Size Spiral Welded Pipe becomes indispensable. Produced using a continuous spiral seam welding technique, these pipes offer distinct advantages in structural integrity and uniformity. For applications demanding precise internal dimensions, a Small Bore Spiral Welded Tube provides the necessary dimensional accuracy and smooth interior surface for efficient fluid transport. Often manufactured from high-strength steel coils, this category of pipe delivers excellent performance under pressure. Whether specified as a Small Caliber Spiral Steel Pipe for municipal water systems or as a Mini Diameter Spiral Welded Pipe for specialized industrial machinery, the spiral weld process ensures a consistent wall thickness and a strong, leak-proof seam along the entire length of the pipe, making it a superior choice for a wide range of low to medium-pressure applications.
The performance of a Small Section Spiral Welded Pipe is defined by a precise set of technical parameters that engineers and procurement specialists evaluate. Below is a detailed breakdown of the standard specifications and material properties that characterize our high-quality product line.
| Outer Diameter (OD) Range | Wall Thickness (WT) Range | Common Steel Grades | Typical Length |
|---|---|---|---|
| 219 mm (8-5/8") to 508 mm (20") | 3.6 mm to 12.7 mm | GR.B, X42, X52, S235, S355 | 6 meters to 12.5 meters (or as per agreement) |
| 168 mm (6-5/8") to 219 mm (8-5/8") | 3.2 mm to 8.0 mm | GR.B, A139-B, S235JR | Fixed at 6m, 10m, or 12m |
| Property | Value (Minimum) | Test Standard |
|---|---|---|
| Yield Strength (Rp0.2) | ≥ 235 MPa | ASTM A370 / EN ISO 6892-1 |
| Tensile Strength (Rm) | ≥ 375 MPa | ASTM A370 / EN ISO 6892-1 |
| Elongation (A50mm) | ≥ 20% | ASTM A370 / EN ISO 6892-1 |
| Carbon Content (C) | ≤ 0.22% | ASTM A751 |
| Manganese Content (Mn) | ≤ 1.40% | ASTM A751 |
Our production of Small Section Spiral Welded Pipe utilizes advanced, automated welding lines and real-time monitoring systems to maintain strict tolerances on diameter, ovality, and straightness. The spiral weld configuration inherently provides a more uniform stress distribution compared to longitudinal seams, particularly under external loading, which enhances the pipe's durability in applications like piling, structural columns, and fencing. The versatility in diameter-to-thickness ratios achievable through this process allows for optimal material use, providing a strong yet economical solution for projects with specific mechanical requirements and budget considerations.