Product Introduction
Structural steel tubes consist of carbon structural tubes and high-strength low-alloy structural tubes, seamless for mechanical structures and general engineering. Carbon structural tubes are used for factories, bridges, ships and common fluid pipelines, normally applied without heat treatment. Thanks to superior strength and comprehensive mechanical properties, high-strength low-alloy tubes are widely adopted for bridges, ships, boilers, vehicles and key building structures.

Standards
GB/T8162 Seamless steel tubes for structural purposes
EN 10297-1 Technical delivery conditions for seamless tubes for mechanical and general engineering applications

Main Steel Grades
20, 45, 20Mn, Q345, 20Mn2, 27Mn2, 30Mn2, 20CrMo, 30CrMo, 35CrMo, 42CrMo, E355, E470

Specifications
Nominal OD: Φ16mm ~ Φ219mm, WT: 2.0mm ~ 40.0mm