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GB/T13793-2008 Q345B welded steel pipe belongs to the low carbon alloy steel (c <0.2%),Q345B welded steel pipe’s comprehensive performance is good, the low temperature performance is good, the cold stamping performance, the welding performance and the cutting performance is good, the surface may paint black varnish, varnish, antirust oil, hot galvanizing, cold Galvanized, 3PE, etc. Q345B welded steel pipes are widely used in bridges, vehicles, ships, construction, pressure vessels.
Q345B welded steel pipes Chemical composition
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chemical composition of Q345B |
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Grade |
Class |
C |
Mn |
Si |
S |
P |
|
|
|
no more than |
||||
|
Q345 |
B |
<=0.2 |
<=1.7 |
<=0.5 |
0.035 |
0.035 |
GB/T13793-2008 Q345B welded steel pipe Mechanical properties
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mechanical property of Q345B |
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|
Grade |
yield |
Tensile |
Elongation after |
|
strength Rel/N/MM^2 |
strength |
fracture A/% |
|
|
|
R/N/MM^2 |
|
|
|
no less than |
|||
|
Q345B |
345 |
470 |
18 |
Q345B welded steel pipe under GB/T13793 standard is KUNFENG Steel mainly steel grade, If you are interested,please feel free to contact us, we can provide Q345B welded steel pipe with high quality and competitive price, to provide you with the most quality service, look forward to cooperating with you, please call.
