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Thick Section Straight Seam Welded Tube
For demanding industrial applications that require superior structural integrity and exceptional pressure-bearing capabilities, look no further than specialized welded steel sections. These high-performance components are engineered for resilience. When your project specifications call for a Heavy Wall Longitudinal Welded Steel Pipe, you are selecting a product defined by its remarkable strength-to-weight ratio and durability in high-stress environments. Similarly, a Thick Gauge Straight Seam Welded Tube offers outstanding resistance to external loads and internal pressure, making it a cornerstone for critical frameworks and mechanical systems. For applications where longevity and unwavering performance are non-negotiable, a Robust Wall Longitudinal Welded Pipe provides the reliable backbone needed for long-term installations. Finally, the Solid Wall Straight Seam Steel Tube is synonymous with uniformity and consistency, ensuring dependable performance across extensive runs in construction and heavy machinery.
The Thick Section Straight Seam Welded Tube is manufactured through a precision-controlled process where steel plate or coil is formed and welded along a single, straight longitudinal seam. This method ensures a consistent wall thickness and a uniform internal diameter, which are critical for structural applications and fluid conveyance under high pressure. Advanced welding techniques, such as Submerged Arc Welding (SAW) or High-Frequency Induction (HFI) welding, are employed to create a weld seam that often matches or exceeds the strength of the base metal. The result is a product characterized by its dimensional accuracy, excellent straightness, and superior mechanical properties, ready to meet the rigorous demands of sectors like oil and gas, construction, shipbuilding, and heavy engineering.
Key Specifications & Parameters:
- Material Grades: Common grades include ASTM A53 Grade B, ASTM A106 Grade B, API 5L Grade B, and high-strength low-alloy (HSLA) steels.
- Manufacturing Standard: Produced in compliance with ASTM A53, ASTM A106, API 5L, EN 10219, and other international standards.
- Welding Process: Primarily Submerged Arc Welding (SAW) for superior weld quality and penetration.
- Testing & Inspection: Each batch undergoes Non-Destructive Testing (NDT), hydrostatic testing, and dimensional checks to ensure integrity.
- End Protection: Ends are capped or protected to prevent damage during shipping and handling.
| Outer Diameter (OD) | Wall Thickness (WT) | Standard Length | Common Applications |
|---|---|---|---|
| 1/2" to 24" (12.7mm to 610mm) | 0.25" to 2.0" (6.35mm to 50.8mm) | 20ft (6m) or Random Lengths up to 40ft (12m) | Structural columns, piling, process piping |
| 24" to 48" (610mm to 1219mm) | 0.375" to 3.0" (9.5mm to 76.2mm) | Double Random Lengths as per project requirement | Large-diameter pipelines, penstocks, caissons |
| 48" and above (1219mm+) | 0.5" and above (12.7mm+) | Custom cut lengths | Major infrastructure, offshore platforms, wind turbine towers |
Mechanical Properties Table (Typical for ASTM A106 Grade B):
| Property | Metric Value | Imperial Value |
|---|---|---|
| Tensile Strength, min | 415 MPa | 60,200 psi |
| Yield Strength, min | 240 MPa | 35,000 psi |
| Elongation in 2" | 20% (min) | 20% (min) |
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