Q345B Square Tube

Q345B square tube is a hollow long strip of steel, formed by rolling Q345B steel strip through a specific process. The name "Q345B square tube" is derived from its material, which is Q345B.

Q: The initial letter of the pinyin of the Chinese character representing the yield strength of steel.
345: Represents the yield strength value, unit MPa
B: Represents quality grade B

Q345B Square Tube Application
Q345B rectangular tubes are commonly used in construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation supports, steel structure projects, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, vehicle undercarriages, and airports.