Striped Rectangular Structural Tube

Our striped rectangular structural tube is engineered for superior strength and aesthetic versatility in demanding structural and architectural applications. Known interchangeably in various markets as a striped rectangular hollow section, this product features a distinctive striped surface pattern that provides excellent non-slip properties and visual texture. Constructed from high-quality carbon steel, it undergoes a specialized hot-rolled or cold-formed process followed by a controlled surface treatment to achieve its characteristic striped finish, resulting in a durable black finished rectangular tube. This finish is highly sought after for its ability to conceal minor handling marks and offer increased resistance to corrosion in its base state, making it ideal for both interior and exterior frameworks where both performance and appearance are critical. It is an excellent alternative to a standard Black Rectangular Steel Tube or basic black rectangular pipe, offering enhanced functionality for projects like industrial guardrails, machinery frames, modern furniture, and architectural accents.


The Striped Rectangular Structural Tube is defined by precise geometric and material specifications to ensure reliability in load-bearing calculations. Its rectangular profile offers a higher section modulus compared to square or round sections of similar weight, providing greater bending resistance about its major axis. This makes it exceptionally efficient for columns, beams, and trusses. The tube is available in a comprehensive range of sizes, wall thicknesses, and lengths to meet diverse project requirements. Below are the detailed standard specifications and mechanical properties.

Standard Size & Dimension Table

Outer Dimension (Height x Width) Wall Thickness Standard Length Approx. Weight per Meter
50 mm x 25 mm 2.0 mm, 2.5 mm, 3.0 mm 6m, 12m 2.42 kg - 3.58 kg
80 mm x 40 mm 2.5 mm, 3.0 mm, 4.0 mm 6m, 12m 4.52 kg - 7.07 kg
100 mm x 50 mm 3.0 mm, 4.0 mm, 5.0 mm 6m, 12m 6.76 kg - 10.79 kg
120 mm x 60 mm 3.0 mm, 4.0 mm, 5.0 mm 6m 8.15 kg - 13.20 kg
150 mm x 100 mm 4.0 mm, 5.0 mm, 6.0 mm 6m 14.02 kg - 20.56 kg

Key Material Properties & Technical Data

  • Material Grade: Standard A500 Grade B, S355J0H, or equivalent.
  • Yield Strength (Min): 345 MPa (50,000 psi).
  • Tensile Strength: 415 MPa (60,000 psi) Min.
  • Surface Finish: Hot-rolled striped black, mill finish. The stripe pattern is integral to the surface.
  • Straightness Tolerance: ≤ 1.5 mm per meter of length.
  • Dimensional Tolerances: Compliant with ASTM A500, EN 10219, or BS 1387 standards.
  • Common Applications: Structural frameworks, industrial work platforms, conveyor system supports, agricultural equipment, architectural handrails and fencing, exhibition stands, and custom fabrications.

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