Carbon steel square tube

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:

  • Outside Dimensions: 10×10mm – 500×500mm

  • Wall Thickness: 0.8mm – 20mm

  • Length: 6m, 12m, or customized

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

• End Finish: Plain end, beveled end, deburred

• Tolerances: As per ASTM/EN standards for OD, thickness, and length

Mechanical & Performance Properties

• Tensile Strength: 400–550 MPa

• Yield Strength: ≥ 245 MPa

• Elongation: 20%–25%

• Load-Bearing: Excellent for compression and bending applications

• Surface Quality: Smooth, uniform finish with clean edges

• Corrosion Resistance: Improved with galvanization or coating

• Dimensional Accuracy: High precision in cold-formed tubes

Production Process

Product Real Shot

Packaging and Shipping

Applications & Advantages

Applications:

1. Building frameworks, supports, and columns

2. Fencing, railings, and gates

3. Furniture manufacturing

4. Mechanical parts and fabrication projects

5. Agricultural machinery frames

Advantages:

• Uniform shape for aesthetic and structural consistency

• Easy to cut, weld, and drill

• Strong in both compression and torsion

• Cost-effective with multiple surface finishes available

FAQ

Q1: What product information must I provide before making a purchase?

A: Please provide the material, size, surface treatment requirements, and the quantities you need.

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.