GBT3094-Q295B SQUARE TUBE is a high-strength low-alloy structural steels.
GBT3094-Q295B SQUARE TUBE chemical composition

Grade   C           Mn                Si           P              S              V                  Nb                    Ti

A        ≦ 0.16    0.80～1.50    ≦0.5      ≦0.040     ≦0.040    0.02～0.15     0.015～0.060         0.02～0.20 - - -

　　　Tensile strength（σb/MPa） 390～570
　　　Elongation（δ5/%）≧23（Class A），≧23（Class B）
　　　Yield point
Thickness (diameter, side length)/mm    ≦16      >16～35      >35～50       >50～100
σs/MPa                                               ≧295        ≧275         ≧255          ≧235

Key Features:
Steels containing only very small amounts of alloying elements, the intensity is not high, but there are good plasticity, cold resistance, hot and cold pressure processing, weldability and corrosion resistance.
Main purpose:
Building structures, industrial plants, low pressure boilers, low and medium pressure chemical containers, tanks, pipes, cranes, tractors, vehicles and less demanding on the strength of the general engineering structures.

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