Q235B square tubes are a hollow square cross-section steel pipe, also known as cold-formed steel profiles. They are shaped by cold bending hot-rolled or cold-rolled steel strips or coils into square cross-section shapes, which are then high-frequency welded. They can be cut to specified lengths. Common lengths are 6 meters and 12 meters, with the number of pieces in a package depending on the tube diameter. Square tubes are mainly available in large sizes ranging from 10*10*0.8-1.5 to 500*500*10-25. Their applications include structural square tubes, decorative square tubes, construction square tubes, and machinery square tubes, among others.

Q235B square pipe applications: machinery manufacturing, glass curtain walls, marble curtain walls, shipbuilding, cargo supports, steel structure projects, furniture production, equipment, agricultural and chemical machinery, auto parts, etc.