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Heavy Duty Thick Wall Welded Pipe
For industrial applications demanding exceptional strength and durability, Heavy Duty Thick Wall Welded Pipe stands as the premier solution. Engineered to withstand extreme pressures and harsh environments, this pipe category is indispensable for critical infrastructure, including structural supports, heavy machinery frames, piling, and demanding fluid transmission systems. The manufacturing process involves forming steel plates or coils and welding along a single, continuous longitudinal seam, creating a robust and reliable product. We specialize in delivering top-tier variants of this essential industrial material, such as Heavy Wall Longitudinal Welded Steel Pipe. Our product line also includes a Thick Gauge Straight Seam Welded Tube, designed for applications requiring a combination of substantial wall thickness and dimensional accuracy. For projects where structural integrity is non-negotiable, our Robust Wall Longitudinal Welded Pipe offers superior resistance to bending and deformation. Furthermore, our inventory features Solid Wall Straight Seam Steel Tube, a product synonymous with uniform wall consistency and reliable performance in high-stress scenarios.
The defining characteristic of <产品名字> is its substantial wall thickness, which directly translates to enhanced load-bearing capacity and longevity. We produce our pipes to meet rigorous international standards, ensuring they deliver consistent performance. The key specifications and material properties are detailed below to provide a clear understanding of the product's capabilities.
Standard Specifications & Dimensions
| Parameter | Range / Specification | Common Standards |
|---|---|---|
| Outer Diameter (OD) | 219 mm to 1625 mm (8.625" to 64") | ASTM A53, ASTM A252, API 5L |
| Wall Thickness | 6.0 mm to 40 mm (0.250" to 1.575") | ASTM A500, EN 10219 |
| Length | Up to 12.2 meters (40 feet) standard, custom lengths available | - |
| Manufacturing Process | Longitudinal Submerged Arc Welding (LSAW) | - |
Material Grades & Mechanical Properties
- Steel Grades: Common grades include ASTM A36, A500 Gr. B/C, API 5L Gr. B to X70, and ASTM A572 Gr. 50. Special grades available upon request.
- Yield Strength (Min): Ranges from 245 MPa (35,500 psi) for Grade B to 485 MPa (70,300 psi) for X70.
- Tensile Strength (Min): Typically from 400 MPa (58,000 psi) to 625 MPa (90,600 psi) depending on the grade.
- Elongation: Minimum elongation varies by grade and thickness, generally conforming to standard requirements (e.g., ≥20%).
- Impact Test: Charpy V-Notch testing available for grades requiring low-temperature toughness.
Surface Treatment & End Finishes
| Treatment Type | Description | Application Benefit |
|---|---|---|
| Bare / Black | As-welded condition with mill scale. | Cost-effective for non-corrosive environments or where further coating will be applied. |
| Varnish Coating | Light anti-rust oil or varnish applied to prevent surface oxidation during transport and storage. | Provides short-term corrosion protection. |
| Beveled Ends | Ends are beveled to a specified angle (typically 30° or 37.5°) for seamless welding on-site. | Facilitates strong, high-quality field welds for pipeline and structural connections. |
| Plain Ends (PE) / Squared | Ends are cut square for applications using mechanical couplings or sleeve connections. | Suitable for piling, certain structural uses, and sleeve-welded joints. |
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