Rectangular Steel Pipe – High-Quality Structural and Mechanical
Tubing for Global Industrial Applications Discover premium rectangular steel pipes engineered for durability, precision, and versatility across diverse engineering projects. These rectangular tubes are manufactured to meet international standards including ASTM A500, ASTM A53, EN 10210, EN 10219, JIS G3466, BS 1387, and BS 6323, ensuring compliance with global construction, energy, and manufacturing requirements. Whether you're sourcing for structural framing, fluid conveyance, or heavy-duty industrial use, our rectangular tubing offers unmatched performance in both mechanical and structural capacities. Key Features: - Dimensions range from 10mm x 20mm up to 400mm x 600mm, accommodating a wide array of design needs - Wall thicknesses vary from 0.5mm to 20mm, providing flexibility for pressure resistance, load-bearing, and cost-efficiency - Lengths available from 0.1 meter to 18 meters, suitable for modular assembly and custom fabrication - Multiple material grades such as 20#, A53B, A106B, API 5L, ST37.0 through ST52.4, offering tailored strength-to-weight ratios - Surface finishes include black paint, oil coating, hot-dip galvanizing, cold galvanizing, and 3PE protective layers for corrosion protection - Certified by ISO 9001:2008, TÜV, SGS, BV, and API 5L—ensuring traceability, quality control, and regulatory compliance Detailed Description: Our rectangular steel pipes are precision-engineered using advanced rolling techniques and heat treatment processes to deliver consistent dimensional accuracy and mechanical integrity. Each tube adheres strictly to tolerance specifications for straightness (max. 1/16" per 3 feet for mechanical sizes; max. 1/8" × total length ÷ 5 for structural), wall thickness variation (±10% nominal), squareness (±2° deviation for adjacent sides), and twist (up to 0.100" depending on size). Corner radii are limited to three times the nominal wall thickness, enhancing weldability and reducing stress concentration at junctions. The mechanical properties align with ASTM A500 Grade B and C requirements, featuring minimum tensile strengths of 58,000 psi and 62,000 psi respectively, with yield strengths of 46,000 psi and 50,000 psi, plus elongation values exceeding 21%, ensuring excellent ductility under dynamic loads. These rectangular tubes serve as foundational elements in high-performance applications such as scaffolding systems, offshore platforms, bridge supports, HVAC ductwork, automotive frames, and industrial machinery frameworks. They are ideal for environments requiring robustness against vibration, temperature fluctuations, and exposure to moisture or chemicals. With options like 3PE lining for pipeline transport and anti-corrosion coatings for marine infrastructure, these products offer long-term reliability across sectors including oil & gas, power generation, shipbuilding, and architectural construction. Customer Testimonials: Engineers from European infrastructure firms praise the consistent geometry and minimal warping during welding operations. Contractors in North America report reduced installation time due to precise corner tolerances and pre-treated surfaces that eliminate the need for additional priming. Fabricators in Australia highlight the ease of bending and cutting without cracking, thanks to uniform carbon content and controlled alloy composition. Frequently Asked Questions: What makes this
Rectangular Pipe suitable for structural applications? Its adherence to ASTM A500 standards ensures high tensile and yield strength, along with accurate dimensions critical for load distribution in building frameworks and support structures. Can I request custom sizes beyond the standard range? Yes, we accommodate special orders within the specified width, height, and wall thickness ranges based on project-specific technical drawings and certifications. How do surface treatments affect longevity? Hot-dip galvanized or 3PE-coated pipes resist rust and chemical degradation, extending service life in outdoor or harsh environments—ideal for pipelines, coastal installations, or chemical processing units. Is this product compliant with international safety regulations? Absolutely. Every batch undergoes rigorous testing and is certified by third-party agencies like TÜV, SGS, and API 5L, making it suitable for export to markets worldwide. This rectangular steel tubing stands out not only for its robust physical characteristics but also for its adaptability across industries. From small-scale fabrication to large-scale civil engineering, it delivers precision, safety, and value—making it the preferred choice for professionals seeking dependable, globally recognized materials.
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