China Yuantai EN10219 Cold Rolled Steel Square Tube - Premium Quality from Leading Suppliers & Factory
Premium EN10219 Cold Rolled Steel Square Tube for Structural Excellence
Yuantai Derun Steel Pipe Group, a Top 500 Chinese Manufacturing enterprise, presents its flagship product: the EN10219 Cold Rolled Steel Square Tube. Designed to meet the most rigorous international benchmarks, our square tubes are the cornerstone of modern, sustainable construction and industrial fabrication.
The cold-rolling process is pivotal, transforming steel through precise mechanical deformation at room temperature. This critical technique work-hardens the steel, significantly enhancing its yield strength and surface quality compared to hot-formed alternatives. It ensures exceptional dimensional accuracy, straightness, and a smooth, uniform finish that is ideal for subsequent processes like painting or powder coating.
Engineered in compliance with the EN 10219 standard, which governs cold-formed welded structural hollow sections, our tubes guarantee consistent mechanical properties, geometric tolerances, and weldability essential for European and global projects. As an ISO9001, CE (10219), and BV-certified manufacturer, we commit to delivering not just a product, but a certified component of structural integrity.
Unmatched Product Advantages and Key Selling Points
Choosing Yuantai Derun's EN10219 Cold Rolled Square Tubes translates into tangible benefits for your projects:
Superior Structural Integrity & Strength
The cold-forming process increases material density and yield strength, resulting in a high strength-to-weight ratio. This allows for lighter, more efficient structural designs without compromising safety or load-bearing capacity.
Exceptional Dimensional Accuracy and Consistency
Our state-of-the-art 65 ERW/HFW lines and advanced cold-roll forming technology produce tubes with tight tolerances on outer dimensions, wall thickness, and squareness. This precision simplifies fabrication, reduces waste, and ensures perfect fit-up during assembly.
Outstanding Surface Quality
A smooth, clean, and scale-free surface is a hallmark of our cold-rolled tubes. This superior finish minimizes the need for extensive surface preparation, enhances corrosion resistance of applied coatings, and provides an aesthetically pleasing appearance for architectural applications.
Excellent Weldability and Formability
The controlled manufacturing process and use of prime steel from mills like HBIS and Baosteel ensure a homogeneous microstructure. This guarantees clean, strong welds and good ductility for secondary forming operations, offering unparalleled flexibility in fabrication.
Commitment to Sustainability
Aligned with our vision for a greener future, the efficiency of cold-formed production and the material efficiency of hollow sections contribute to reduced environmental footprint. Our products and operations are certified to ISO14001 environmental management standards.
Comprehensive Product Specifications and Capabilities
Our manufacturing prowess ensures we can meet diverse and demanding requirements. We utilize prime steel sourced from leading state-owned mills, processed through our integrated operations spanning 1,600 acres.
Technical Specifications at a Glance
The table below summarizes our core production range for EN10219 Cold Rolled Square Tubes:
| Parameter | Specification Range |
|---|---|
| Standard Compliance | EN 10219, CE Marked, ISO 9001, BV, JIS, etc. |
| Material Grades | S235JR, S275JR, S355JR, S355J2H, etc., and equivalents. |
| Square Tube Dimensions | 10×10mm to 500×500mm (Standard range). Capable up to 1000×1000mm. |
| Wall Thickness | 0.5mm to 60mm (Standard range for cold-rolled). |
| Length | Standard lengths up to 12m/18m. Custom lengths available upon request. |
| Process | Cold Roll Forming + High-Frequency Welding (HFW) or Electric Resistance Welding (ERW). |
| Surface Finish | Mill finish (smooth, oiled), Pre-galvanized, or Black (ready for painting). |
| Main Applications | Structural frameworks, Architectural glazing & canopies, Machinery & equipment frames, Agricultural and industrial storage systems, Renewable energy supports, Artistic installations. |
About Yuantai Derun
Founded in 2002 and headquartered in China's largest steel pipe production base, our vertical integration—from manufacturing and stringent QA to logistics and trade—ensures full control over quality and supply chain reliability. With a registered capital of 700M RMB and over 2,200 professionals, we combine scale with expertise.
Ordering and Final Assurance
Every length of our EN10219 Cold Rolled Steel Square Tube is a testament to our commitment to "driving innovation in the industry." We invite you to experience the Yuantai Derun difference—where global compliance, unwavering quality, and a vision for sustainable development converge to deliver structural solutions you can build upon with absolute confidence. Contact our sales team today for competitive quotations, detailed technical data sheets, and collaborative project support. Let's construct a stronger, more efficient future together.