SA572Gr55 is an American standard high strength low alloy saw-Vanadium structural steel, performed to ASTM A572/A572M. It belongs to the five levels of high-strength low-alloy structural steel, one of the steel plates, has good strength, plasticity and toughness, can meet the needs of various complex engineering structures.
SA572Gr55 steel features:
SA572Gr55 steel has good strength, plasticity and toughness, and can withstand the challenges of harsh working environments such as heavy loads and high stresses. It also has good impact toughness, fatigue strength and welding properties, making it excellent in practical applications.
The chemical composition of SA572Gr55 mainly includes alloying elements such as carbon C(0.27 ~ 0.35), silicon Si(0.93 ~ 1.20), nickel Ni(≤0.029), copper Cu(≤0.025), Manganese Mn(0.80 ~ 1.10), sulfur S(≤0.025), phosphorus P(≤0.026) and chromium Cr(0.7) 5 ~ 1.20), etc.
Mechanical properties of SA572Gr55 steel:
The yield strength is usually between 345MPa and 550MPa, and the tensile strength is between 485MPa and 620MPa. These mechanical properties enable SA572Gr55 steel to maintain stable performance under harsh working environments such as heavy loads and high stresses.
SA572Gr55 steel is widely used in bridge, construction, ship, vehicle manufacturing and other fields because of its excellent mechanical properties. In particular, it is used for construction and construction machinery parts that require good weldability and toughness, such as construction steel structures, construction machinery, mining machinery, heavy trucks, Bridges, pressure vessels, etc.