The square cross section of the tubes provides good geometric strength. The pipes are therefore used in high strength applications. There are high pressure and high temperature services such as the heat exchangers which use the pipes as well. The 316 SS square tubing is strong and corrosion resistant. The 316 material has chromium, nickel and molybdenum in the composition. This combination allows for increased corrosion resistance with 215MPa minimum yield strength 505MPa minimum tensile strength. The tubes can also operate under temperatures up to 870 degrees Celsius. The SS Square Welded Tube has use cases in the oil and gas, petroleum, petrochemical, construction and in structural applications as well. There are higher grades such as the SS317 Square Tubes which are made of the 317 grade material which has 517MPa minimum tensile strength. It is useful in high strength demanding applications. The ASTM A270 Seamless Square Tube is used in high pressure, high temperature services as well as general corrosive services too. Please contact us for the full catalog of the SS square tube and the pricing.