| Grade | ASTM A588 A588 Grade B / ASTM A588 Grade B |
| Standard | ASTM A588 |
| Description | High strength low alloy weathering steel, Grade B variant with slightly different chemistry than Grade A. Used for bridges, buildings and exposed structures requiring corrosion resistance without protective coatings. |
| Applications | High-strength low-alloy structural steel with atmospheric corrosion resistance (weathering steel); bridges, transmission/communication towers, gusset plates, exposed structural applications |