It can withstand high pressure and high temperature environment, significantly improve the pressure resistance of the container, and ensure safe production. It is convenient for welding operation, can be connected by a variety of welding methods, can maintain good welding joint performance, and is not prone to defects such as cracks and pores.
A572 Grade60 and A572 Grade65 both belong to the ASTM A572 series, which are high-strength low-alloy structural steels. They comply with the ASTM A572/A572M standard, which specifies the performance indicators and test methods of high-strength low-alloy niobium-vanadium structural steel plates, ensuring the quality and reliability of the steel plates.
A283 Grade B/C steel sheet is a carbon structural steel under the American Society for Testing and Materials (ASTM) standard. Taking A283GrC steel sheet as an example, it has specific chemical composition and mechanical properties. Its chemical composition requirements are as follows: carbon (C) content ≤ 0.24%; silicon (Si) content ≤ 0.40% when the steel plate thickness is ≤ 40mm, and 0.15 - 0.40% when the steel plate thickness is > 40mm; manganese (Mn) content ≤ 0.90%; sulfur (S) content ≤ 0.040%; phosphorus (P) content ≤ 0.035%; copper (Cu) content ≤ 0.20%. Its yield point (σs/MPa) ≥ 30 (205), elongation after fracture (δ5/%) ≥ 221.
American standard square tube A500GR.B, C, D all adopt the A500 standard issued by the American Standards Association (ASTM), which means that they have certain specifications and guarantees in terms of quality and performance. At the same time, these steels are cold-formed welded and seamless carbon steel materials, suitable for welded, riveted or bolted bridges and building structures, as well as general structural purposes.
A500 Grade B/C/D rectangular tubes/pipes are widely used in engineering and construction due to their excellent mechanical properties, durability and ability to adapt to a variety of environments. They not only provide high strength and stability, but also perform well in different application environments, from bridges to buildings, to dynamic loads and low temperature environments.
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).
