Carbon Steel Rectangular Tube

Carbon steel rectangular tube is a hollow-section steel product with differing width and height dimensions, designed for applications requiring greater strength in one direction. Manufactured through welding or seamless processes, rectangular tubes offer high load-bearing capacity, excellent structural stability, and versatility in both industrial and architectural projects.
PRODUCTS INTRODUCTION

Technical Specifications


  • Material Grade: ASTM A500, ASTM A513, EN 10219, JIS G3466, A36, S235, S355, 4130, 4140, 4340, A106 Gr.A/B, A333, A500, St52, AH36, 1020, 1018, 1010, S275JR, A53, 1045, SS400, etc.

  • Manufacturing Process: ERW, seamless, hot rolled, cold formed

  • Size Range:

    • Dimensions: 20×30mm – 400×600mm

    • Wall Thickness: 1.0mm – 20mm

    • Length: 6m, 12m, or customized

  • Surface Treatment: Black painted, galvanized, epoxy-coated, anti-rust oil

  • End Finish: Plain end, beveled end, deburred

  • Tolerances: OD ±1%, wall thickness ±10%


Mechanical & Performance Properties


  • Tensile Strength: 400–550 MPa

  • Yield Strength: ≥ 245 MPa

  • Elongation: 20%–25%

  • Bending Resistance: Excellent in the stronger axis direction

  • Corrosion Resistance: Enhanced with galvanization or protective coating

  • Dimensional Stability: Maintains shape under heavy loads


Production Process



Product Real Shot


Packaging and Shipping



Applications & Advantages


Applications:

  1. Structural supports in buildings and bridges

  2. Frames for heavy equipment and trailers

  3. Conveyor systems and industrial machinery

  4. Storage racks and shelving systems

  5. Agricultural and construction equipment

Advantages:

  • High strength-to-weight ratio

  • More load capacity in one direction compared to square tubes

  • Easy to fabricate and assemble

  • Available in a wide range of sizes and finishes


FAQ


Q1: What product information must I provide before making a purchase?
A: Please provide the grade, width, thickness, surface treatment requirements, and the quantities you need.

Q2: What about product pricing information?
A: Prices may vary due to fluctuations in raw material costs.

Q3: Is it possible to send samples?
A: Yes, we offer free samples with express shipping worldwide.

Q4: Do you offer a service for customized products?
A: Yes, we can supply according to your specific requirements.

Q5: Can I visit you in person?
A: Customers from all over the world are welcome to meet with us.

Q6: Can you assist me in importing steel products for the first time?
A: Yes, we can provide support through our experienced shipping agents.


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