Q235B square tubes are hollow square cross-section steel pipes, also known as cold-formed steel sections. They are steel sections with square cross-section shapes and sizes, manufactured by cold bending processed from hot-rolled or cold-rolled strip steel or coil as the base material, and then high-frequency welded.

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

Q235B square tube applications
Primarily used in machinery manufacturing, glass curtain walls, marble curtain walls, shipbuilding, cargo supports, steel structure projects, furniture production, equipment, agricultural and chemical machinery, automotive parts, etc.