SA516 is a type of steel plate that is commonly used in the construction of pressure vessels, boilers, and other equipment. Here are some key properties and characteristics of SA516 steel: - SA516 is a carbon steel grade - It has a carbon content of 0.10-0.22% - It has a manganese content of 0.60-0.90% - It has a silicon content of 0.10-0.40% - It has a phosphorus content of 0.04% max - It has a sulfur content of 0.05% max - It has a tensile strength of 55-75 ksi (379-517 MPa) - It has a yield strength of 30-45 ksi (207-310 MPa) - It has good weldability and is suitable for welding with common welding processes - It is often used in applications such as: - Pressure vessels - Boilers - Storage tanks - Heat exchangers - Piping and tubing SA516 steel is known for its good strength, toughness, and weldability, making it a popular choice for various industrial applications. Note: The "SA" in SA516 stands for "ASME" (American Society of Mechanical Engineers), and the number "516" indicates the grade level. The exact composition and properties of SA516 steel may vary depending on the specific standard or specification being followed.