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What are the properties of Q345C seamless tube?

Q345C seamless pipe is one of the materials of low alloy steel pipe.
Q345C seamless tube: Q345A, Q345B, Q345C, Q345D, Q345E
Main properties of Q345C seamless tube:
It has good comprehensive mechanical properties, good weldability, cold, hot workability and corrosion resistance, and has good low temperature toughness.
Q345C seamless tube application
Q345C low alloy steel seamless tube can be used for ships, boilers, pressure vessels, oil storage tanks, bridges, power station equipment, lifting transportation machinery and other welded structural parts with higher loads.
Q345C seamless tube old standard comparison:
18Nb containing Nb killed steel, performance is similar to 14MnNb, mainly used for cranes, blowers, chemical machinery, etc.
09MnCuPTi steel for atmospheric corrosion resistance, good low-temperature impact toughness, weldability, hot and cold processing performance, mainly used in various machinery in wet and rainy areas and corrosive atmosphere environment
12MnV working temperature is -70 degrees low temperature steel, mainly used for freezing machinery, structural parts working at low temperature
14MnNb performance is similar to 18Nb steel, mainly used for containers and other structural parts with working temperature of -20-450 degrees
Q345B low alloy steel has good comprehensive mechanical properties, low temperature performance, cold stamping performance, welding performance and machinability, and is mainly used in various machinery such as mining, transportation, and chemical industry.
Q345BRE performance is similar to Q345B steel, impact toughness and cold bending performance is better than Q345B, the same use as Q345B steel.
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