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Longitudinal Seam Welded Tube
For applications demanding precision, strength, and reliability, the choice of tubing is paramount. A Longitudinal Seam Welded Tube, manufactured through a process where the seam runs parallel to the pipe's length, offers a robust solution for numerous industrial and structural challenges. Our high-quality Straight Seam Welded Steel Tube is engineered for consistent performance in fluid transport, mechanical components, and support structures. The manufacturing integrity is assured through advanced Electric Resistance Welding (ERW) techniques, producing a superior ERW Longitudinal Welded Pipe with a clean, uniform seam and excellent dimensional accuracy. This makes our Straight Welded Seam Steel Pipe ideal for both high-pressure and low-pressure systems where leak-proof integrity is non-negotiable. We specialize in producing an Electric Resistance Welded Straight Pipe that meets stringent international standards, providing a cost-effective and durable alternative to seamless piping in many scenarios without compromising on critical performance metrics.
The fundamental advantage of our <产品名字> lies in its controlled production process and versatile material specifications. By utilizing high-grade steel coils and precise forming technology, we achieve a product with exceptional wall thickness uniformity and concentricity. The electric resistance welding process creates a strong, homogeneous bond along the longitudinal seam, which is often further processed through heat treatment or cold working to enhance its mechanical properties. This results in a tube with superior weld integrity, capable of withstanding significant internal and external stresses. The consistency of our <产品名字> ensures predictable performance in fabrication, whether it's being bent, flanged, or welded into larger assemblies, making it a preferred component for engineers and fabricators worldwide who require a reliable and specification-compliant tubular product.
Key Product Specifications & Parameters
- Manufacturing Standard: ASTM A53, ASTM A135, ASTM A500, EN 10219, EN 10255, and other international equivalents.
- Welding Process: High-Frequency Electric Resistance Welding (HF-ERW).
- Common Applications: Fluid conveyance (water, oil, gas), structural frameworks, mechanical tubing, fence posts, scaffolding, and automotive parts.
- Key Advantages: Excellent dimensional accuracy, smooth internal surface, cost-effectiveness for medium-duty applications, and readily available in long lengths.
Detailed Technical Data Table
| Outer Diameter (OD) | Wall Thickness (WT) | Common Steel Grades | Standard Length | Surface Finish |
|---|---|---|---|---|
| 1/2 inch (21.3 mm) to 24 inches (610 mm) | SCH 10, SCH 40, SCH 80, or custom gauges from 0.8mm to 12.7mm | GR.B, A53-B, ST37, ST52, S235JR, S355JR | Fixed Random Lengths (up to 12m) or Cut to Length | Black, Galvanized (Hot-Dip or Electro), Painted, Varnished |
| Metric Sizes: 17.2mm to 508mm | As per EN, DIN, JIS, or GB standards | Q235, SS400, SPHT1, SPHT2 | Typically 6 meters, other lengths available upon request | Bare, Oiled, PE/PP Coated |
Mechanical & Chemical Properties (Typical for Grade A53-B / S235JR)
| Property | Value | Test Standard |
|---|---|---|
| Tensile Strength (min) | 415 MPa (60,200 psi) | ASTM A370 / EN 10002-1 |
| Yield Strength (min) | 240 MPa (34,800 psi) | |
| Elongation (min) | 20% in 2 inches | |
| Hardness (max) | 71 HRB | |
| Carbon (C) Content (max) | 0.30% | ASTM A751 / Spectrochemical Analysis |
| Manganese (Mn) Content | 0.29 - 1.06% | |
| Phosphorus (P) Content (max) | 0.05% |
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