A500 Grade B/C/D shaped pipe/tube
American Standard Square Tube A500GR.B, C, D all adopt the A500 standard issued by the American Standards Association (ASTM), and meet internationally recognized standards in terms of quality and performance. They are suitable for cold-formed welded and seamless round, square, rectangular or special-shaped structural tubes, and can be used for welded, riveted or bolted structures of bridges and buildings, as well as general structural purposes. Its steel density is about 7850 kg/m³ (0.284 pounds/cubic inch). The tubes are available in welded and seamless sizes, with a circumference not exceeding 88 inches (2235 mm) and a specified wall thickness not exceeding 0.875 inches (22 mm).
