Pressure Vessel Steel Pipe
We have long term cooperation with domestic large enterprises. We customize gas pipes of different specifications according to customers’ requirements with high quality and low price.
Q345C | |||||||||||||||
Chemical Composition (%) ( Not more than ) | |||||||||||||||
C |
Si |
Mn |
P |
S |
Nb |
V |
Ti |
Cr |
Ni |
Cu |
N |
Mo | |||
0.20 |
0.50 |
1.70 |
0.030 |
0.030 |
0.07 |
0.15 |
0.20 |
0.30 |
0.50 |
0.30 |
0.012 |
0.10 | |||
Mechanical Properties | |||||||||||||||
Yield Strength (N/mm2) |
Tensile Strength (N/mm2) |
Elongation Percentage (%) |
Impact Energy Absorption (J) | ||||||||||||
≥335 |
470~630 |
≥21 |
≥34 | ||||||||||||
Q345D | |||||||||||||||
Chemical Composition (%) ( Not more than ) | |||||||||||||||
C |
Si |
Mn |
P |
S |
Nb |
V |
Ti |
Cr |
Ni |
Cu |
N |
Mo | |||
0.18 |
0.50 |
1.70 |
0.030 |
0.025 |
0.07 |
0.15 |
0.20 |
0.30 |
0.50 |
0.30 |
0.012 |
0.10 | |||
Mechanical Properties | |||||||||||||||
Yield Strength (N/mm2) |
Tensile Strength (N/mm2) |
Elongation Percentage (%) |
Impact Energy Absorption (J) | ||||||||||||
≥335 |
470~630 |
≥21 |
≥34 | ||||||||||||
Q345B | |||||||||||||||
Chemical Composition (%) ( Not more than ) | |||||||||||||||
C |
Si |
Mn |
P |
S |
Nb |
V |
Ti |
Cr |
Ni |
Cu |
N |
Mo | |||
0.20 |
0.50 |
1.70 |
0.035 |
0.035 |
0.07 |
0.15 |
0.20 |
0.30 |
0.50 |
0.30 |
0.012 |
0.10 | |||
Mechanical Properties | |||||||||||||||
Yield Strength (N/mm2) |
Tensile Strength (N/mm2) |
Elongation Percentage (%) |
Impact Energy Absorption (J) | ||||||||||||
≥335 |
470~630 |
≥20 |
≥34 | ||||||||||||
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