A573 Grade 70 Reliable Steel for Tough Structural and Pressure Applications

A573 Grade 70 is a high-strength structural steel often used in pressure-related components. It exhibits excellent toughness, uniform microstructure, and superior tensile properties, making it suitable for applications subjected to high stress and impact. Its composition features low carbon with Mn and Si, contributing to improved strength and ductility.

The steel is supplied in hot-rolled or normalized condition. Normalizing enhances grain refinement and low-temperature toughness, improving crack resistance for demanding applications.

A573 Grade 70 is commonly used in pressure vessels, storage tanks, high-strength structures, bridge components, and heavy machinery. Its combination of strength and toughness makes it a dependable material in safety-critical engineering.