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Straight Joint Welded Steel Pipe
When selecting piping for structural or fluid conveyance applications, the integrity of the weld seam is paramount. Our Straight Seam Welded Steel Tube is engineered to meet this critical demand, offering a robust and reliable solution manufactured through Electric Resistance Welding (ERW) technology. This process creates a high-strength longitudinal bond, making our ERW Longitudinal Welded Pipe exceptionally suitable for high-pressure and load-bearing scenarios. The product stands out for its dimensional consistency and superior surface finish, which facilitates easier installation and reduces long-term maintenance costs. Designed for durability, this Straight Welded Seam Steel Pipe is a preferred choice in industries ranging from construction and infrastructure to oil and gas transportation. For projects requiring precision and a seamless flow path, our Longitudinal Seam Welded Tube provides the necessary performance characteristics to ensure system reliability and longevity.
The manufacturing excellence of our Straight Joint Welded Steel Pipe is reflected in its precise technical specifications. We utilize premium-grade steel coils and employ state-of-the-art ERW mills to produce pipes with a consistently strong, homogeneous weld. The process involves forming the steel strip and passing it through a series of rollers before the edges are heated and fused under pressure, creating a weld as strong as the parent metal. Each <产品名字> undergoes rigorous non-destructive testing, including ultrasonic and hydrostatic tests, to verify weld integrity and pressure resistance before it is approved for shipment. This commitment to quality control ensures that every pipe meets international standards and customer-specific requirements.
Key Specifications & Materials
- Standard: ASTM A53, ASTM A500, API 5L, EN 10219, JIS G3444
- Material Grades: Gr. B, Gr. A, Gr. C, S235JR, S275JR, S355JR, SS400, STK400
- Welding Process: High-Frequency Electric Resistance Welding (HF-ERW)
- Common Applications: Structural Frames, Fluid Transportation, Fencing, Scaffolding, Mechanical Parts
- Surface Treatment: Black, Galvanized, Varnished, or as per customer request.
Available Size Range
| Outer Diameter (OD) | Wall Thickness (WT) | Standard Length |
|---|---|---|
| 1/2 inch (21.3 mm) to 24 inches (609.6 mm) | SCH 10, SCH 40, SCH 80, and custom gauges | Fixed: 20 ft (6 m) or 40 ft (12 m) |
| 26.9 mm to 165 mm | 1.0 mm to 6.0 mm | Random: 5.8 m to 12 m |
Mechanical Properties (Typical for ASTM A53 Grade B)
| Property | Value | Test Method |
|---|---|---|
| Tensile Strength, min | 415 MPa (60,200 psi) | ASTM A370 |
| Yield Strength, min | 240 MPa (35,000 psi) | ASTM A370 |
| Elongation in 2 in (50 mm), min | 20% | ASTM A370 |
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