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Seamless steel pipe for structure is an integrally rolled weld-free steel tube, featuring high strength, outstanding load-bearing performance, stable mechanical properties and excellent processability, widely used for building structures, engineering supports and mechanical framework manufacturing.
| Variety | Specification (mm) | Steel grade | Executive standard | Main uses | |
| Outer diameter | Wall thickness | ||||
| Structural pipe | Φ38~356 | 3.5~40 | 20、35、45、Q295、Q345 | GB/T 8162-2018 ASTM A53 | Pipes for general and mechanical structures |
100% seamless integrated structure, no welding weak points, high safety factor under heavy load
Ultra-high dimensional precision, tight OD/ID tolerance, perfect assembly performance
Excellent tensile strength, impact resistance and anti-fatigue performance
Great stability under high pressure, bending and complex stress conditions
Easy for cutting, machining, welding and on-site secondary processing
Customizable size, length, grade and surface treatment
Full mill test certificate (MTC) provided
Chemical composition & mechanical property inspection
Ultrasonic testing (UT), eddy current flaw detection
100% dimensional & appearance full inspection
Third-party inspection and certification are acceptable
Standard export waterproof packaging with plastic end caps
Steel strip bundled, fumigated wooden case / steel frame packing
Global sea, land and air transportation support
Fast delivery and stable supply
