Black Rectangular Hollow Tube

For structural and architectural projects demanding a combination of strength, clean aesthetics, and versatility, the Black Rectangular Hollow Tube is a premier choice. Often referred to as a Black Rectangular Steel Tube, this profile offers superior load-bearing capacity with a significantly lighter weight compared to solid sections, making it ideal for frameworks, supports, and modern designs. Its distinctive hollow rectangular shape provides excellent resistance to torsional forces. The uniform black finish, characteristic of a Black Finished Rectangular Tube, not only delivers a sleek, contemporary look suitable for exposed applications but also offers a basic layer of protection against corrosion. This product is synonymous with a high-quality Black Rectangular Pipe used in construction, furniture, and automotive industries. For applications requiring enhanced grip or a textured appearance, options like the Striped Rectangular Hollow Section are also available.


The inherent design of the Black Rectangular Hollow Tube provides a remarkable strength-to-weight ratio. This efficiency translates into easier handling, reduced transportation costs, and faster installation times on-site. Engineers and fabricators value this profile for its predictable performance and ease of welding, cutting, and drilling, allowing for complex and custom fabrications. Whether utilized as a primary load-bearing member in a building's skeleton, as a sleek railing component, or as the robust frame for industrial shelving, the Black Rectangular Hollow Tube delivers reliable structural integrity. Its clean lines and dark finish seamlessly integrate into both industrial and architectural settings, often eliminating the need for additional painting or finishing, which streamlines project timelines and budgets.

Key Specifications & Dimensions

Our Black Rectangular Hollow Tube is manufactured to precise standards, ensuring consistency and reliability for your projects. Below are the detailed parameters:

  • Material: High-Strength Low-Alloy (HSLA) Steel, Carbon Steel
  • Standard: ASTM A500 Grade B, AISI, DIN, EN, JIS, GB/T
  • Surface Finish: Mill finish, Black Oxidized, or Painted
  • Process: Cold-formed or Hot-formed, Electric Resistance Welded (ERW)
  • Key Properties: Excellent Weldability, High Tensile Strength, Good Ductility
Nominal Size (H x W) Wall Thickness (t) Weight per Meter (kg/m) Moment of Inertia (Ix) Common Lengths
20mm x 10mm 1.2mm, 1.5mm 0.54, 0.66 0.25 cm⁴ 6m, 6.5m
40mm x 20mm 1.5mm, 2.0mm, 2.5mm 1.32, 1.73, 2.13 4.62 cm⁴ 6m, 12m
60mm x 40mm 2.0mm, 2.5mm, 3.0mm 2.90, 3.58, 4.24 18.5 cm⁴ 6m, 12m
80mm x 40mm 2.5mm, 3.0mm, 4.0mm 4.37, 5.19, 6.78 38.2 cm⁴ 6m, 12m
100mm x 50mm 3.0mm, 4.0mm, 5.0mm 6.76, 8.86, 10.88 80.1 cm⁴ 6m, 12m

Note: Dimensions and weights are nominal. Other sizes, thicknesses, and custom lengths are available upon request. All tubes are subject to strict quality control for straightness and dimensional tolerance.

Hot Products

  • 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.
  • Large Diameter Galvanized Elliptical Pipe

    Large Diameter Galvanized Elliptical Pipe

    In many fields such as construction, machinery, agriculture, forestry, animal husbandry and fishery, the demand for Large Diameter Galvanized Elliptical Pipe is increasing day by day.Tianjin Xinlida Steel Pipe Co., Ltd. has been focusing on this since its establishment in 2015 and stands out in the market with professional strength.
  • 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-Rolled Seamless Steel Pipe

    Hot-Rolled Seamless Steel Pipe

    The China Hot-Rolled Seamless Steel Pipe manufactured by Xinlida is formed through the hot-rolling process and has a circular hollow structure. It is a basic steel widely used in various industries. Its unique production method endows the product with multiple advantages, making it suitable for various complex working conditions.
  • Precision cold-rolled seamless steel pipe

    Precision cold-rolled seamless steel pipe

    In the industrial manufacturing sector, Precision cold-rolled seamless steel pipe, with their high precision and high performance, have become a key basic material for industries such as energy, transportation, and construction. Tianjin Xinlida Steel Pipe Co., Ltd. has been deeply involved in steel pipe manufacturing for many years, providing global customers with precision steel pipe solutions that meet international standards through intelligent production systems and a global layout.
  • Galvanized Elliptical Steel Pipe

    Galvanized Elliptical Steel Pipe

    Xinlida professional raw Galvanized Elliptical Steel Pipe. Products using high-frequency welding process, welding uniform, high strength, greatly improve production efficiency while reducing costs, product quality is stable, in line with national standards and industry requirements.Its surface is hot dip galvanized, which greatly enhances the corrosion resistance and rust resistance of the steel pipe and effectively prolongs the service life.It can be used for a long time even in harsh environments.

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