Product Specification

Product Description

Cold-formed square and rectangular steel tubes are made by forming round tubes through high-frequency welding, then reshaping them into square or rectangular sections via cold bending. This process ensures excellent dimensional accuracy, smooth surface finish, and uniform mechanical performance.

Widely used in structural and architectural applications, these tubes are available in carbon steel or stainless steel and can be customized for wall thickness, section size, and length.

Core Advantage

Application

• Steel structures and building support frames
• Equipment skeletons and mechanical frame systems
• Solar mounting systems and agricultural machinery components
• Furniture frames and display rack systems
• Carports, sheds, and canopy structures
• Urban public installations (e.g., railings, fences, kiosks)
• Decorative architecture such as door/window frames and curtain wall substructures

Available Mold

Customization

With in-house tooling, material sourcing, and technical support, we offer flexible customization to meet your specific needs:

• Dimension Customization: Non-standard diameter, thickness, and length
• Material Options: Carbon steel, stainless steel
• Processing Services: Cutting, logo marking
• Surface Treatment: Painting, shot blasting, oiling, galvanizing
• Marking & Packaging: Custom logo, labels, and packaging options

We support drawing-based production, small batch trial orders, and fast sample delivery to help your projects start quickly.

Why Choose Us?

• Factory Direct
  • No middleman to make a difference
• Favorable Price
  • Bulk Production/ Favorable Price
• Quality Assurance
  • Advanced Equipment/ Mature Technology/ Production Standards
• High Precision
  • Dimensional Tolerances/ Straightness Convexity High precision of torsion, etc.
• Quick Delivery
  • With raw materials and molds, Shipment in 3 days at the earliest
• Good Service
  • Support technical production consulting Pre-sales/In-sales/ After-sales full range of services

Packaging & Delivery

We provide professional packaging and flexible delivery options based on your product and shipping needs:

• Packaging Methods:
  • Steel-strapped bundles with labels
  • Plastic wrap + woven fabric cover
  • Export-grade wooden cases or pallets
  • Plastic end caps for tube protection
• Delivery Options:
  • Sea freight, truck transport, or rail shipment
• Common ports:
  • Shanghai, Changsha
• Lead Time:
  • Standard sizes: 7–15 days
  • Custom orders: 30–45 days

Export documents such as CO, CQ, and third-party inspection reports are available upon request.

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FAQ Section 

Q1: How could you guarantee your products?

A1: Each piece of products is manufactured by certified workshops, inspected by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

Q2: Can we visit your factory?

A2: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.

Q3: Are you a factory or trading company?

A3: We are manufacturers and also do export trade.