Q345 series steel performance differences

Q345 is a steel material. It is low alloy steel (C< 0.2%), widely used in construction, Bridges, vehicles, ships, pressure vessels, etc. Q represents the yield strength of this material, and the 345 behind refers to the yield value of this material, which is about 345MPa. The yield value will decrease with the increase of the thickness of the material.

Q345 has good comprehensive mechanical properties, low temperature performance is acceptable, plasticity and weldability is good, used as low and medium pressure vessels, oil tanks, vehicles, cranes, mining machinery, power stations, Bridges and other structures bearing dynamic loads, mechanical parts, building structures, general metal structural parts, hot rolled or normalizing state use, can be used for a variety of structures in cold areas below -40℃.