What is the application of Q345B seamless pipe?

Q345B seamless pipe belongs to low alloy steel pipe. Q345B low alloy steel pipe is one of the materials of seamless steel pipe. Q345B low alloy steel pipe is a kind of steel material. In the past, the Q345B steel was called 16Mn. 

Q345B seamless pipe products are widely used in boilers, pressure vessels, petroleum storage tanks, bridges, power station equipment, lifting and transportation machinery and other high-load welding structural parts.

Q345B seamless pipe chemical composition

Q345B seamless tube C: 0.12-0.20 Si: 0.20-0.60 Mn: 1.00-1.60 P: ≤0.040 S: ≤0.040 Ni: ≤0.30 Cr: ≤0.30 Cu: ≤0.20 V: 0.02-0.15 Nb: 0.015-0.06

Q345B seamless pipe mechanical properties

Tensile strength: 490-675MPa, Yield strength: ≥345MPa, Elongation: ≥21

Q345B seamless pipe has good comprehensive mechanical properties, low temperature performance, cold stamping performance, welding performance and machinability. It is mainly used in mining, transportation, chemical and other machinery.