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Rectangular Tube with Black Stripes
For demanding industrial and architectural projects, the aesthetic and structural advantages of a Black Rectangular Steel Tube are widely recognized. Our specific variant elevates this profile further by incorporating a distinctive, durable stripe pattern. This makes our product, often referred to as a Striped Rectangular Hollow Section (RHS), a superior choice where both visual impact and material performance are critical. Manufactured to exacting standards, this Black Finished Rectangular Tube offers enhanced resistance to corrosion and abrasion compared to standard painted finishes. The integrated stripes are not merely decorative; they are a permanent part of the material's coating, providing a consistent, low-maintenance appearance ideal for modern design aesthetics. When specifying a Black Rectangular Pipe for structural frameworks, safety railings, decorative facades, or specialized machinery, our striped version delivers unmatched durability and a sleek, professional look.
The Rectangular Tube with Black Stripes is engineered for precision and longevity. The base material is high-strength, low-alloy (HSLA) steel, formed through a continuous weld process to ensure uniform wall thickness and exceptional structural integrity. The signature black finish with contrasting stripes is achieved through a proprietary hot-dip galvanizing and powder coating fusion process. This multi-stage treatment first applies a robust zinc layer for cathodic protection against rust, followed by a thick epoxy-polyester hybrid powder coat that is cured at high temperature. The stripes are integrally layered during this coating phase, resulting in a finish that will not chip, peel, or fade under normal environmental exposure, including UV rays and moisture. This makes the Rectangular Tube with Black Stripes perfectly suited for both interior architectural features and exterior applications requiring minimal upkeep.
Key Specifications & Dimensional Data
- Material: High-Strength Low-Alloy Steel (ASTM A500 Grade B/C)
- Standard: ASTM A500, A513, EN 10219
- Surface Finish: Hot-Dip Galvanized + Fusion-Bonded Epoxy-Polyester Powder Coat
- Stripe Color Options: White, Metallic Silver, Dark Gray (Standard)
- Corrosion Protection: Excellent (Suitable for C3 & C4 atmospheric environments per ISO 12944)
- Primary Applications: Architectural Structures, Industrial Guardrails, Machinery Framing, Decorative Trims, Exhibition Stands, Retail Fixtures
| Nominal Size (H x W) | Wall Thickness (t) | Section Weight (kg/m) | Moment of Inertia (Ix) | Available Lengths |
|---|---|---|---|---|
| 50 mm x 25 mm | 2.0 mm / 2.5 mm / 3.0 mm | 2.14 / 2.64 / 3.13 | 8.96 cm⁴ / 10.87 cm⁴ / 12.65 cm⁴ | 6m, 6.5m, 7m |
| 75 mm x 50 mm | 2.5 mm / 3.0 mm / 4.0 mm | 4.52 / 5.38 / 7.07 | 38.5 cm⁴ / 45.6 cm⁴ / 59.1 cm⁴ | 6m, 6.5m, 7m, 12m |
| 100 mm x 50 mm | 3.0 mm / 4.0 mm / 5.0 mm | 6.76 / 8.92 / 10.99 | 88.3 cm⁴ / 114.8 cm⁴ / 139.2 cm⁴ | 6m, 7m, 12m |
| 120 mm x 80 mm | 4.0 mm / 5.0 mm / 6.0 mm | 11.78 / 14.58 / 17.29 | 229 cm⁴ / 279 cm⁴ / 327 cm⁴ | 6m, 12m |
| 150 mm x 100 mm | 5.0 mm / 6.0 mm / 8.0 mm | 18.64 / 22.19 / 29.01 | 546 cm⁴ / 648 cm⁴ / 832 cm⁴ | 6m, 12m (Upon Request) |
Technical Advantages & Quality Assurance
- Dimensional Accuracy: Tight tolerances on outer dimensions and wall thickness per ASTM standards.
- Superior Bonding: The striped coating exhibits >9H pencil hardness and excellent adhesion (GT 0).
- Consistent Finish: Automated coating process ensures uniform color and stripe alignment across all batches.
- Structural Performance: High yield strength (min. 345 MPa for Grade B) for reliable load-bearing capacity.
- Customization: Available in custom lengths and can be pre-cut, drilled, or mitred to project specifications.
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