ASTM A572 Grade 42 is a high-strength, low-alloy structural steel used primarily in construction and engineering applications where high strength-to-weight ratios are required. As part of the ASTM A572 specification, Grade 42 has specific properties that make it suitable for welded structures like bridges, buildings, and other structural uses.
Yield Strength: 42 ksi (290 MPa), which refers to the minimum amount of stress the steel can withstand before permanently deforming.
Tensile Strength: Ranges between 60–80 ksi (415–550 MPa), giving it a high strength-to-weight ratio ideal for structural applications.
Elongation: Typically, it offers elongation of 20% in 200 mm, which provides moderate ductility and toughness.
Composition: Contains small amounts of alloying elements like columbium, vanadium, or both, to enhance strength and durability. Carbon content is usually lower to improve weldability.
ASTM A572 Grade 42 is commonly used in construction projects, such as:
Structural supports and frameworks in buildings and bridges
Crane booms and other equipment where high strength is necessary with a focus on weldability and formability
Transportation infrastructure projects like transmission towers
Overall, ASTM A572 Grade 42 balances strength, weldability, and cost-effectiveness, making it a popular choice in demanding structural environments.
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
