English
Home > Products > Slitted Black Circular Steel Tube

Slitted Black Circular Steel Tube

When sourcing structural components that combine industrial strength with a clean, tailored aesthetic, precision-engineered tubing is paramount. Our slitted black circular steel tube is engineered for applications demanding both durability and specific design functionality. This product is also known and supplied as a Straight Slit Black Round Tube, offering a uniform opening for various assembly and mounting needs. Clients seeking a robust black cylindrical profile with an integrated channel often refer to it as a Black Round Tube with Straight Slit. For projects requiring a conduit or structural member with a precise linear cut, our Straight Slotted Black Circular Pipe provides an ideal solution. Similarly, the Black Straight Slit Round Pipe is a synonymous product designed for seamless integration into frameworks, railings, and mechanical systems where a pre-cut slot is essential for bolts, wires, or other components.


The Slitted Black Circular Steel Tube is manufactured from high-grade carbon steel, ensuring exceptional tensile strength and resistance to deformation. The tube undergoes a meticulous slitting process to create a clean, straight aperture along its length, with tolerances held to exacting standards. A durable black oxide or powder-coated finish is applied, which not only provides a consistent matte appearance but also offers a layer of protection against corrosion and everyday wear. This combination of robust construction and precise fabrication makes the Slitted Black Circular Steel Tube a versatile choice for architects, fabricators, and engineers. Its primary function is to serve as a structural element that accommodates secondary attachments without requiring post-production modification, saving significant time and labor in assembly. The slit allows for the insertion of brackets, panels, or tabs, facilitating secure and flush mounting. Common industries utilizing this product include commercial construction for custom handrails and signage supports, industrial automation for machine guarding and sensor mounts, retail furniture for display systems, and telecommunications for cable management structures. Its standardized dimensions and reliable quality ensure predictable performance and ease of integration into both prototype and large-scale production runs.

Technical Specifications & Parameters

Our Slitted Black Circular Steel Tube is available in a range of standard sizes. Below are the core specifications that define the product's physical and material properties.

Standard Material & Finish Properties

  • Base Material: ASTM A513 Type 5 Carbon Steel
  • Yield Strength: Min. 70,000 psi (483 MPa)
  • Surface Finish: Black Oxide (Fe3O4) Coating or Matte Black Powder Coat
  • Corrosion Resistance: Provides protection against rust in indoor and mild outdoor environments.
  • Slit Tolerance: ±0.005 inches (±0.127 mm) on slit width.
  • Edge Condition: De-burred, smooth edges on the slit to prevent injury and ensure clean assembly.

Standard Available Dimensions

Outer Diameter (OD) Wall Thickness Standard Length Slit Width (Nominal)
1.00" (25.4 mm) 0.065" (1.65 mm) 12' (3.66 m) 0.125" (3.18 mm)
1.50" (38.1 mm) 0.075" (1.91 mm) 12' (3.66 m) 0.1875" (4.76 mm)
2.00" (50.8 mm) 0.083" (2.11 mm) 12' (3.66 m) 0.1875" (4.76 mm)
2.50" (63.5 mm) 0.095" (2.41 mm) 12' (3.66 m) 0.250" (6.35 mm)
3.00" (76.2 mm) 0.109" (2.77 mm) 12' (3.66 m) 0.250" (6.35 mm)

Additional Options & Customization

  • Custom Lengths: Available upon request, with cut-to-length services.
  • Alternative Finishes: Galvanized, pre-galvanized, or custom color powder coating.
  • Slit Configuration: Multiple slits or specific slit positioning can be engineered for custom orders.
  • Material Grade: Stainless steel (304 or 316) options for enhanced corrosion resistance.
  • Tolerance: Tighter tolerances available for precision applications.

Related Products

Hot Products

  • Longitudinal Welded Pipe

    Longitudinal Welded Pipe

    Longitudinal Welded Pipe producted by Xinlida manufacturer is a steel plate or steel strip rolled, welded into a straight line by welding technology (such as high frequency welding or submerged arc welding) to form a tubular structure.Compared with seamless steel pipe, the production process of straight seam steel pipe is simple and the cost is low, but the strength of the weld may be slightly lower than that of seamless steel pipe.
  • Galvanized Cold-Rolled Seamless Steel Pipe

    Galvanized Cold-Rolled Seamless Steel Pipe

    Xinlida's China Galvanized Cold-Rolled Seamless Steel Pipe is a seamless steel pipe produced by the cold-rolling process. Compared with hot-rolled steel pipes, the cold-rolling process endows it with higher precision and better surface quality. The wall thickness of its pipes is uniform and the dimensional accuracy is high. Generally, the outer diameter tolerance is controlled within ±0.1mm, and the wall thickness tolerance is about ±0.05mm. It can meet the demands of high-precision processing. Meanwhile, the surface of cold-rolled seamless steel pipes is smooth, which reduces the resistance of fluid flow in the pipeline and improves the transportation efficiency. They are widely used in industries such as petroleum, natural gas, chemical engineering, boilers, and mechanical manufacturing.
  • Thin-Walled Galvanized Circular Tube

    Thin-Walled Galvanized Circular Tube

    As a kind of thin and protective pipe, thin-walled galvanized circular tube is widely used in many industries. Tianjin Xinlida production of thin-walled galvanized pipe specifications rich and diverse. The outer diameter range is between DN15 - DN250mm, and the wall thickness is 1.5 - 20 mm.
  • Seamless Steel Pipe

    Seamless Steel Pipe

    The Seamless Steel Pipe manufactured by Xinlida factory, with its excellent pressure-bearing capacity and toughness, can be widely applied in high-pressure working conditions. It can be seen in petrochemical, power, water and gas transmission, mechanical manufacturing, aerospace and other fields. The wall thickness of the product can be made to 10mm-60mm, and the pipe diameter can be customized from φ57mm to φ630mm as required. The steel pipes produced by Xinlida Steel Pipe have uniform wall thickness and precise tolerance control, capable of withstanding harsh working conditions such as high pressure and heavy load. It is applicable to various occasions in the construction industry, etc.
  • High-pressure cold-rolled seamless steel pipe

    High-pressure cold-rolled seamless steel pipe

    High-pressure cold-rolled seamless steel pipes are tubular products formed through a cold-rolling process. The pipe body has no weld seams and is specifically designed for use in high-pressure environments. Cold rolling allows for higher dimensional accuracy, more uniform wall thickness, and better surface quality compared to hot-rolled products. The absence of weld seams is crucial; any defects under high pressure can lead to leaks or even bursts, and the seamless structure significantly reduces this risk.
  • Thin Wall Galvanized Elliptical Tube

    Thin Wall Galvanized Elliptical Tube

    At the moment when the steel pipe manufacturing industry is booming, China Thin wall galvanized elliptical tube are widely used in many fields such as construction, agriculture and industry by virtue of their own characteristics.Tianjin Xinlida Steel Pipe Co., Ltd. has been focusing on steel pipe manufacturing since its establishment. With deep technical foundation and continuous innovation spirit, it has set an industry benchmark in the production of thin-walled galvanized elliptical pipes and provided customers with high-quality, high-performance products and comprehensive services.
  • Related Blog
  • Reviews

Send Inquiry

Hit enter to search or ESC to close
X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept