S235 S195 S355JR Carbon Steel Rectangular Square Tube

Classification by cross-section shape: (1) Simple cross-section square tubes – square square tubes, rectangular square tubes (2) Complex cross-section square tubes – flower-shaped square tubes, open-shaped square tubes, corrugated square tubes, special-shaped square tubes according to surface treatment Divided: hot-dip galvanized square tubes, electro-galvanized square tubes, oiled square tubes, pickled square tubes are classified according to their uses - square tubes for decoration, square tubes for machine tools and equipment, square tubes for machinery industry, square tubes for chemical industry, steel Square tubes for structural use, square tubes for shipbuilding, square tubes for automobiles, square tubes for steel beams and columns, and special-purpose square tubes are classified according to wall thickness - extra-thick-walled square tubes, thick-walled square tubes and thin-walled square tubes

Production process classification (square tube process classification)

1. The production process of pipes on the market is divided into three categories: welded square pipes, seamless square pipes, and cold-drawn seamless square pipes. The welding process of square pipes is divided into arc welding square pipes, resistance welding square pipes (high frequency, low frequency), gas welding square pipes, furnace welding square pipes, etc. Among them, the most commonly used S235 S195 S355JR carbon steel rectangular square pipes are made by high-frequency welding. Square pipes are made of ordinary carbon steel square pipes and low-alloy square pipes. Commonly used carbon steels are divided into: Q195, Q215, Q235, SS400 S235, 20# steel, 45# steel, etc.; low-alloy steels are divided into Q345, 16Mn, Q390, ST52-3, etc.

S235 S195 S355JR Carbon Steel Rectangular Square Tube Advantage

1.Low processing cost

2.Good mechanical properties and ductility

3. High structural stability

Parameter (Specification)