ASTM A588
The ASTM A588 specification is the Standard Specification for High-Strength Low-Alloy Structural Steel , up to 50 ksi Minimum Yield Point, with Atmospheric Corrosion Resistance for applications where strength and durability are needed. The required ASTM G101 Corrosion Resistance Index must be ≥ 6.0. In addition to the typical application in welded bridges and buildings, the specification is also commonly used in passenger rail cars.