Small Diameter Black Rectangular Tube

Precision engineering demands precision components. For applications requiring robust yet compact structural elements, our small diameter black rectangular tubes offer an exceptional solution. These versatile tubes are engineered for strength, durability, and a clean aesthetic finish, making them ideal for a wide range of projects from intricate frameworks and machinery guards to custom furniture and architectural detailing. Whether you're sourcing a **Small Bore Black Rectangular Pipe** for fluid transfer in confined spaces, a **Mini Caliber Black Rectangular Tube** for lightweight robotic assemblies, a **Small Size Black Rectangular Tube** for modern handrail systems, or a **Narrow Caliber Black Rectangular Pipe** for specialized OEM parts, our product line meets stringent specifications. The uniform black oxide finish provides not only a sleek, professional look but also offers enhanced corrosion resistance for extended service life in various environments.
The defining characteristic of our **Small Diameter Black Rectangular Tube** is its meticulous balance of form and function. Manufactured from high-quality steel, each tube undergoes a controlled blackening process that creates a consistent, magnetite-rich layer on the surface. This treatment is far superior to simple painting, as it becomes an integral part of the metal, resisting chipping and peeling. The precise rectangular geometry ensures excellent load-bearing capacity and torsional rigidity compared to round tubes of similar weight, allowing for more efficient and space-saving designs. This makes the **Small Diameter Black Rectangular Tube** a preferred choice for engineers and fabricators who need reliable performance without compromising on a low-profile appearance. Its versatility extends across industries, proving invaluable in prototypes, repair work, and high-volume production runs where dimensional accuracy is non-negotiable.

Technical Specifications & Available Sizes

• Material: Low Carbon Steel (A513, A500 Grade B equivalent)
• Finish: Black Oxide (Hot-Dip or Commercial Blackening Process)
• Wall Thickness: Ranges from 0.065" (16 gauge) to 0.120" (11 gauge)
• Tolerance: +/- 0.005" on dimensions, +/- 0.004" on wall thickness
• Standard Length: 20 feet (can be cut-to-length upon request)
• Primary Properties: Good weldability, machinability, and formability

For specific dimensional data, refer to the following table which outlines our most commonly stocked sizes. Custom sizes outside this range can be quoted on request.