Steel pipes are long, cylindrical tubes made from steel, a strong and durable metal alloy. They are used in a variety of applications, including construction, transportation, and manufacturing, and are known for their strength, versatility, and durability. Square steel pipes are steel pipes that have a square cross-section, with equal width and height. They are typically used in structural applications, such as the construction of buildings, bridges, and other structures. Square steel pipes are also used in the production of machinery, equipment, and other products. Round steel pipes are steel pipes that have a circular cross-section, with a uniform diameter. They are commonly used in the transportation of liquids and gases, such as water, oil, and natural gas, and are also used in the construction of buildings, bridges, and other structures. Round steel pipes are available in a range of sizes and thicknesses, and can be seamless or welded. Both square and round steel pipes are available in a range of sizes and thicknesses, and can be coated with a layer of paint or another protective material to help prevent corrosion and extend their lifespan.