Q620 Tube

High-Strength

Q620 (Tube)

High-strength structural steel Q620 Tube.

Chemical Composition (%)

B0.004
C0.18
MN2
MO0.3
NB0.11
SI0.6
V0.12

Mechanical Properties

Yield:620MPa; Tensile:720MPa; Elong:14%; 250HB

Chinese Standard

GB/T 1591

Applications

Structural steel for construction and engineering

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