91国产精品

Square and rectangular tubes, referred to as square tubes and rectangular tubes, are steel pipes with equal or unequal side lengths, made from strip steel through processing. They are typically formed by unpacking, flattening, curling, and welding the strip steel into a circular pipe, which is then rolled into a square or rectangular shape and cut to the required length.

Types by Production Process:

1. Hot-rolled seamless square tubes

2. Cold-drawn seamless square tubes

3. Extruded seamless square tubes

4. Welded square tubes

Types by Material:

1. Plain carbon steel square tubes

2. Low alloy steel square tubes

Standards and Applications:

1. Galvanized Welded Square Tubes for Low-Pressure Fluid Transport: Used for transporting water, gas, air, oil, and heating steam under low pressure.

2. Welded Square Tubes for Mine Fluid Transport: Used for mine compressed air, drainage, and shaft methane gas with straight seam welding.

3. Large Diameter Electric Welded Square Tubes for Low-Pressure Fluid Transport: Used for transporting water, sewage, gas, air, and heating steam under low pressure.

4. Stainless Steel Welded Square Tubes for Mechanical Structures: Used in machinery, automobiles, bicycles, furniture, and decoration.

5. Stainless Steel Welded Square Tubes for Fluid Transport: Used for transporting low-pressure corrosive media.

6. Spiral Square Tubes for Low-Pressure Transport: Used for transporting water, oil, natural gas, and heating under low pressure.

7. Square Tubes for Transporting Combustible and Non-Combustible Fluids: Used for transporting combustible and non-combustible fluids under low or high pressure, with high requirements.

These square and rectangular tubes are widely used in construction, glass curtain walls, door and window decoration, steel structures, railings, machinery manufacturing, automotive manufacturing, household appliances, shipbuilding, containers, power, agricultural construction, greenhouses, bicycle frames, motorcycle frames, shelves, fitness equipment, leisure and tourism products, steel furniture, various specifications of petroleum casings, tubing, pipeline pipes, water, gas, sewage, air, heating fluid transport, fire protection, and support structures in the construction industry.

The seamless square tubes, rectangular tubes, large diameter square rectangular tubes, hot-rolled seamless square tubes, cold-drawn seamless square tubes, extruded seamless square tubes, and welded square tubes sold by the company are widely applicable. 91国产精品 Steel, focusing on customer satisfaction and adhering to the principles of honesty and quality at competitive prices, welcomes both new and old customers to negotiate business.