Straight Slit Black Round Tube

For applications demanding both functional ventilation and a sleek, modern aesthetic, a Black Round Tube with Straight Slit is an ideal engineering solution. This specific profile combines the structural integrity of a tubular form with a precision-cut linear opening, offering controlled airflow, cable management pathways, or integration points within a framework. Often referred to as a Straight Slotted Black Circular Pipe, its design is favored in architectural detailing, industrial machinery guards, and contemporary furniture design where a clean, uninterrupted line is paramount. The versatility of a Black Straight Slit Round Pipe lies in its ability to serve discreetly while maintaining a high-strength profile, making it suitable for both load-bearing and purely decorative applications. When constructed from robust materials, such as a Straight Slit Black Steel Round Tube, it provides exceptional durability for outdoor use, protective enclosures, and heavy-duty equipment, ensuring long-term performance even in demanding environments.


The <产品名字> is engineered to meet precise specifications, ensuring consistency and reliability for integration into your projects. The defining characteristic is the straight, laser-cut slit which runs the length of the tube, available in various widths to control aperture size. The tube itself is typically manufactured from high-grade steel, aluminum, or stainless steel, with a matte black powder-coated finish that provides superior corrosion resistance and a uniform, non-reflective appearance. This finish not only enhances durability but also allows for seamless blending with other components or standing out as a deliberate design feature.

To assist with material selection and technical planning, please refer to the detailed specifications below.

Standard Material & Finish Specifications

  • Primary Material: Carbon Steel, ASTM A513
  • Alternative Materials: Aluminum 6063-T5, Stainless Steel 304
  • Standard Finish: Matte Black Powder Coat (Polyester)
  • Finish Thickness: 60-80 μm
  • Corrosion Protection: Excellent resistance to chipping, fading, and chemicals

Standard Product Dimensions & Tolerances

Outer Diameter (OD) Wall Thickness Slit Width (Standard) Standard Length Length Tolerance
25.4 mm (1 inch) 1.5 mm 5 mm 6.0 m ± 3 mm
38.1 mm (1.5 inch) 2.0 mm 8 mm 6.0 m ± 3 mm
50.8 mm (2 inch) 2.5 mm 10 mm 6.0 m ± 3 mm
76.2 mm (3 inch) 3.0 mm 12 mm 6.0 m ± 5 mm

Key Mechanical & Performance Properties

  • Yield Strength (Carbon Steel): ≥ 355 MPa
  • Surface Hardness (Powder Coat): ≥ 3H (Pencil Hardness)
  • Operating Temperature Range: -30°C to +120°C
  • Standards Compliance: Conforms to ASTM, EN, and ISO standards for dimensional accuracy and finish.

Hot Products

  • Straight Slit Black Rectangular Tube

    Straight Slit Black Rectangular Tube

    Xinlida’s China Straight Slit Black Rectangular Tube, as a unique pipe, occupies an important position in industrial production and various projects.It adopts advanced straight seam welding technology, steel plate or steel strip will be carefully curled after forming, along the straight direction of accurate welding.This unique welding method makes the weld line regular, which not only greatly improves the welding efficiency, greatly shortens the production cycle, but also effectively ensures the stability of the overall structure of the pipe, making the pipe more durable when subjected to external forces.
  • Galvanized U-channel

    Galvanized U-channel

    Tianjin Xinlida Steel Pipe Co., Ltd. has long specialized in the manufacturing of steel pipes and structural steel, establishing a comprehensive business ecosystem that integrates domestic production, overseas bases, and global trade. Our galvanized U-channels offer a core competitive advantage by combining long-lasting corrosion resistance—achieved through hot-dip galvanizing that meets national standards—with a high-strength, one-piece formed structure. This solution effectively addresses four major industry pain points: structural corrosion, insufficient load-bearing capacity, lengthy construction periods, and high maintenance costs—challenges often encountered in coastal saline-alkali areas, humid mountainous regions, and environments subject to rain, snow, and low temperatures. We operate our own intelligent production facilities with substantial annual capacity and a full suite of advanced structural steel processing equipment. Adhering to the GB/T13912 galvanizing standard, we manufacture all U-channels using Q235B and Q355B grade steel, while offering services such as custom specifications, precision cutting, and prefabricated processing. Clients—whether for domestic projects or overseas trade—benefit from rapid production scheduling and flexible order adjustments; profile specifications and order quantities can be modified during production to meet project timelines and minimize inventory waste.
  • Spiral welded pipe for steel structures

    Spiral welded pipe for steel structures

    Tianjin Xinlida Steel Pipe Co., Ltd. focuses on its core steel pipe business, with Spiral welded pipe for steel structures being one of its core products. The products utilize mature welding technology, resulting in robust structures, excellent load-bearing capacity, and adaptability to various needs in steel structure construction, meeting relevant quality standards. Leveraging its import and export qualifications, the company engages in cross-border trade of spiral welded pipes for steel structures, covering overseas markets such as Southeast Asia and the Middle East. Its reliable quality and attentive service have earned recognition from customers both domestically and internationally. The products are highly adaptable, with specifications adjustable to meet the specific requirements of steel structure projects. The company provides efficient services throughout the entire process, from product selection to cross-border delivery, accurately matching needs and ensuring efficient order fulfillment, showcasing the company's strength and service advantages.
  • Large Diameter Galvanized Pipe

    Large Diameter Galvanized Pipe

    Xinlida’s China Large Diameter Galvanized Pipe plays a key role in many fields by virtue of their unique properties and wide applicability, and have become one of the indispensable materials in modern engineering.Large diameter galvanized circular pipe has rich specifications and large outer diameter size, which can meet the needs of different large projects.
  • Hot-Dip Galvanized Round Pipe

    Hot-Dip Galvanized Round Pipe

    Tianjin Xinlida Steel Pipe Co., Ltd. has been deeply involved in the steel pipe industry for many years. Relying on a complete business system of domestic production + overseas bases + global trade, and leveraging the mature production capacity and international production standards of its overseas production base in the Philippines, the company has dedicated itself to developing this hot-dip galvanized round pipe. The product boasts four core advantages: long-lasting corrosion resistance, high strength, easy installation, and high cost-effectiveness. It perfectly solves industry pain points such as easy corrosion, insufficient load-bearing capacity, cumbersome construction, and high procurement costs of pipes used in outdoor, underground, coastal, and chemical areas. It is the ideal pipe choice for various engineering projects in construction, energy, and transportation.
  • Hot-Dip Galvanized Flat Steel

    Hot-Dip Galvanized Flat Steel

    Xinlida Factory is equipped with a fully automated hot-dip galvanizing production line and specializes in the supply of hot-dip galvanized flat steel. This product effectively addresses common engineering challenges—such as the susceptibility of steel to rust in outdoor, coastal, or humid environments, and the limited service life of grounding components due to corrosion. Featuring a stable base material and a robust hot-dip galvanized coating, it serves as a highly cost-effective choice for projects involving electrical grounding, photovoltaic systems, and steel structures.

Send Inquiry

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