GB/T 8162 Q345B Steel pipe
GB/T8162 Q345B Steel pipe is the low carbon alloy steel (c<0.2%), good comprehensive performance, low temperature performance, cold stamping performance, welding performance and good cutting performance.
GB/T8162 Q345B Steel Chemical Composition:
Grade |
C % |
Si % |
Mn % |
Cr % max |
Ni % max |
Cu % max |
P % max |
S % max |
Q345B |
< 0.20 |
< 0.50 |
< 1.70 |
0.30 |
0.20 |
0.30 |
0.30 |
0.30 |
GB/T8162 Q345B Steel Mechanical Property:
Steel grade |
Tensile strength Rm/MPa |
Yield Strength Rel/MPa |
Break elongation A% |
Q345B |
470-630 |
>345 |
20 |
GB/T8162 Q345B Steel Application:
Widely used in bridges, buildings, vehicles, ships, pressure vessel etc.
Source:
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