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Solid Wall Straight Seam Steel Tube
For demanding industrial applications requiring exceptional durability and structural integrity, our Solid Wall Straight Seam Steel Tube is engineered to deliver unmatched performance. Manufactured through a precision longitudinal welding process, these tubes offer superior strength, dimensional accuracy, and excellent resistance to high pressure and mechanical stress. They are the ideal solution for critical infrastructure projects, including heavy-duty construction, oil and gas pipelines, structural supports, and power generation facilities, where reliability cannot be compromised. To meet diverse project specifications, we offer a range of related heavy-wall products, such as our Heavy Wall Longitudinal Welded Steel Pipe, designed for extreme pressure containment. For applications needing superior thickness and gauge, our Thick Gauge Straight Seam Welded Tube provides exceptional load-bearing capacity. When robustness is the primary concern, our Robust Wall Longitudinal Welded Pipe ensures long-term stability in harsh environments. Finally, for the most severe duty cycles, we supply Heavy Duty Thick Wall Welded Pipe, built to withstand the toughest operational challenges.
The manufacturing excellence of the Solid Wall Straight Seam Steel Tube is defined by its stringent production controls and high-quality raw materials. Utilizing advanced high-frequency induction welding or submerged arc welding (SAW) techniques, we ensure a consistent, robust, and flawless weld seam along the entire length of the tube. This process guarantees superior metallurgical bonding, enhancing the tube's overall strength and preventing failure points. Every Solid Wall Straight Seam Steel Tube undergoes rigorous non-destructive testing, including ultrasonic testing and hydrostatic pressure tests, to verify its integrity and compliance with international standards. The result is a product that offers excellent dimensional stability, a smooth internal surface for efficient flow, and a high strength-to-weight ratio, making it a cost-effective and reliable choice for engineers and project managers worldwide.
Key Specifications of Solid Wall Straight Seam Steel Tube
- Material Grades: ASTM A53 Grade B, ASTM A106 Grade B, API 5L Grade B, and other carbon/mild steels.
- Manufacturing Process: High-Frequency Induction Welding (HFIW) or Submerged Arc Welding (SAW).
- Common Standards: ASTM A53, ASTM A106, API 5L, EN 10219, EN 10217.
- Surface Finish: Black (mill finish), Galvanized, Varnished, or as per customer request.
- Ends: Plain end, Beveled end, Threaded and coupled, or Square cut.
- Primary Applications: Structural supports, fluid transmission, mechanical tubing, piling, and high-pressure systems.
| Outer Diameter (OD) | Wall Thickness (WT) | Standard Length | Pressure Rating (Approx.) |
|---|---|---|---|
| 1/2 inch (21.3 mm) to 24 inches (610 mm) | SCH 40, SCH 80, SCH 160, and custom thickness up to 1 inch (25.4 mm) or more | 20 ft (6.1 m) or 40 ft (12.2 m). Random lengths (18-24 ft) also available. | Varies by size and schedule; typically from 500 PSI to over 3000 PSI. |
| Common Sizes: 2", 4", 6", 8", 10", 12" | Common Schedules: SCH 40, SCH 80, SCH 160, XXS | Custom lengths can be produced upon request. | Specific ratings calculated per ASME B31.3/ASME B31.1 standards. |
Detailed Technical Parameters
| Property | Specification / Value | Test Method / Standard |
|---|---|---|
| Tensile Strength (Min) | 60,000 psi (415 MPa) for ASTM A106 Gr. B | ASTM A370 |
| Yield Strength (Min) | 35,000 psi (240 MPa) for ASTM A106 Gr. B | ASTM A370 |
| Chemical Composition (Typical % - ASTM A106 Gr. B) | C: 0.30 max, Mn: 0.29-1.06, P: 0.035 max, S: 0.035 max | ASTM A751 |
| Hydrostatic Test Pressure | Minimum of 2,500 psi for Schedule 80 pipes, or as per standard requirement. | ASTM A530 / API 5L |
| Hardness | Typically HRB 80 max for carbon steel grades. | ASTM E10 / E18 |
| Weld Seam Integrity | 100% Ultrasonic Testing (UT) or Eddy Current Testing (ECT). | ASTM E213 / E309 |
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