The A769/A769M-17 steel grade is a high-strength, low-alloy (HSLA) steel that is primarily used in structural applications. It is commonly used in the construction industry for bridges, buildings, and other infrastructure projects.
One of the key features of the A769/A769M-17 steel grade is its chemical composition. It is made up of elements such as carbon, manganese, phosphorus, sulfur, silicon, copper, chromium, nickel, molybdenum, and vanadium. The specific composition of the steel grade can vary depending on the manufacturer and the intended application.
In terms of mechanical properties, the A769/A769M-17 steel grade has a minimum yield strength of 345 MPa (50 ksi) and a minimum tensile strength of 485 MPa (70 ksi). It also has minimum elongation requirements, which determine its ability to deform without breaking under tension.
The A769/A769M-17 steel grade conforms to the ASTM A769/A769M standard, which sets the requirements for HSLA steel plates and bars. This standard specifies the chemical composition, mechanical properties, and other relevant characteristics of the steel grade.
Overall, the A769/A769M-17 steel grade is known for its high strength and excellent formability, which make it suitable for various structural applications.