Shanghai Katalor is a steel pipe supplier in China. We can produce GB/T 8162 Q345B round pipe and rectangular pipe. Since the circle area is the largest under the condition of the same circumference, more fluid can be transported by the round tube. In addition, when the ring section is subjected to internal or external radial pressure, the force is more uniform. Therefore, our Q345B round pipe become a hot sale product.
Q345B physical properties
Grade |
Tensile strength |
Lower yield strength |
Elongation after fracture |
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|
Thickness/mm |
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|
≤16 |
＞16-30 |
＞30 |
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|
Not less than |
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|
Q345 |
470-630 |
345 |
325 |
295 |
20-21 |
Q345B chemical composition:
C≤0.20,
Mn ≤1.70,
Si≤0.50,
P≤0.035,
S≤0.035.
Katalor is the professional Chinese GB/T 8162 steel supplier .If you need Q345B pipe , we can put the Q345B pipe order to our steel mill directly or collect these goods from our stock directly if we have enough ex-stock, please be free to contact us!
