Square steel tube

We offer a comprehensive range of Hollow Section Tubes, designed to meet the highest standards of quality and performance. Our hollow sections are available in various shapes and sizes, making them suitable for a wide array of construction and engineering applications, including scaffolding, structural support, and general mechanical purposes. With an emphasis on durability and strength, our products are engineered to withstand challenging environments and loads.

Product Specifications

• Shapes Available:

  • Square
  • Rectangular
  • Round
  • Triangular
  • Hexagonal
  • Elliptical

• Quality Standards:

  • Hollow Sections:
    • GB/T 13793: Longitudinal electric resistance welded steel tubes
    • GB/T 6728: Cold formed steel hollow sections for general structure
    • ASTM A500: Cold Formed Welded and Seamless Carbon Steel Structural Tubing
    • ASTM A 53: Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated
    • EN 10210: Hot finished structural hollow sections
    • EN 10219: Cold formed welded structural hollow sections
    • JIS G 3466: Carbon steel square for general structural purposes
    • BS 1387: Steel tubes for water, gas, air, and steam
    • IS : 1161, IS : 3601, IS : 3074, IS : 4923, DIN 1626, and others.

• Steel Grades:

  • Q195, Q215, Q235, Q275, Q295, Q345 (GB Standards)
  • S235, S275, S355 (EN Standards)
  • Gr. A, Gr. B, Gr. C (ASTM Standards)
  • SS330, SS440 (JIS Standards)

• Size Range:

  • Square Sections: 10 mm x 10 mm to 500 mm x 500 mm
  • Rectangular Sections: 10 mm x 20 mm to 600 mm x 400 mm
  • Round Sections: 1/8" to 4"
  • Wall Thickness: 0.5 mm to 20.0 mm
  • Length: 0.3 m to 18 m (or as customer required)

• Scaffolding Tube Specifications:

  • Outer Diameter: 38 mm, 42 mm, 48.3 mm - 48.6 mm
  • Wall Thickness: 2.0 mm to 4.0 mm
  • Length: 0.3 m to 18 m

Processing and Coating

• Processes:

  • Seamless: Hot Rolled, Hot Expanded
  • Welded: ERW (Electric Resistance Welded), HFW (High Frequency Welded)

• Coating Options:

  • Hot-dipped Galvanized
  • Electro Galvanized

• Surface Treatment:

  • Lightly oiled
  • Hot dip galvanized
  • Electro galvanized
  • Black finish

• End Types:

  • Square cut with burr removed

• Packing:

  • Plastic plugs in both ends
  • Hexagonal bundles (max. 2,000 kg) secured with steel strips
  • Wrapped in waterproof paper and PVC sleeves for protection.

Testing and Certification

We ensure the quality of our Hollow Section Tubes through rigorous testing. This includes:

• Chemical Composition Analysis
• Mechanical Property Tests (Ultimate tensile strength, yield strength, elongation)
• Technical Tests (Flattening, flaring, bending, hardness, impact tests, etc.)
• Exterior Size Inspection
• Mill Test Certificate: EN 10204/3.1B provided upon request.

Applications

Our Hollow Section Tubes are versatile and widely used in:

• Construction: For structural applications that require strength and durability.
• Scaffolding: Providing essential support in construction and maintenance work.
• Mechanical Engineering: Used in various machinery and structural components.
• Automotive Applications: Ideal for manufacturing durable car frames and chassis components.

Conclusion

Our Hollow Section Tubes are the perfect solution for your structural and mechanical needs. With a commitment to quality, a diverse range of specifications, and a customer-focused approach, we strive to meet and exceed the expectations of our clients. Don't hesitate to reach out for further information, quotations, or to discuss your project requirements. We are here to assist you in selecting the right products for your applications.