Q690 Bar

High-Strength

Q690 (Bar)

High-strength structural steel Q690 Bar.

Chemical Composition (%)

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

Mechanical Properties

Yield:690MPa; Tensile:770MPa; Elong:14%; 280HB

Chinese Standard

GB/T 1591

Applications

Structural steel for construction and engineering

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