A515-70 steel ASTM specifications and applications

ASTM A515-70 steel is a type of carbon-silicon steel plate that is primarily used in the production of pressure vessels for intermediate and higher-temperature service. The material has good weldability and is typically supplied in the normalized condition, which improves its toughness and ductility.

The chemical composition of ASTM A515-70 steel includes carbon (0.31% max), manganese (0.90% max), phosphorus (0.025% max), sulfur (0.025% max), silicon (0.15-0.40%), and trace amounts of other elements.

A515-70 steel grade is suitable for environments where high-pressure or high-temperature conditions exist, such as in boilers and reactors. It exhibits excellent mechanical properties, including high tensile strength, yield strength, and elongation.

Additionally, ASTM A515-70 steel can be readily fabricated and machined, making it ideal for use in various applications. These include pressure vessels, storage tanks, heat exchangers, piping systems, and other structural components.

Overall, ASTM A515-70 steel is an excellent choice for equipment that must withstand extreme temperatures and pressures while maintaining its structural integrity.