Current and Potential Applications

NUCu 70 (ASTM A710 Grade B) steel was used in 2000 to retrofit the I-55/I-64/I-70/US-40 Poplar Street Bridge Complex over the Mississippi River, East St. Louis, Illinois. High strength steel was required for the retrofit because of weight limitations and for the high fracture energy that was required for seismic redundancy.

In 2006 this steel was used for construction of a bridge in Lake Villa, Illinois. For the north Milwaukee Avenue Bridge, 500 tons of steel plates were produced and fabricated into girders. The bridge was not painted, resulting in a significant savings in construction and maintenance costs.

NUCu 70W (ASTM A710 Grade B) steel can be used in applications that require high strength, good fracture toughness at low temperatures, easy welding, good weatherability and corrosion resistance. These potential applications include:

• bridges
• ships
• tank cars
• pipe lines
• oil platforms
• guard rails and sign poles
• tall buildings for wind and seismic resistance
• power and illumination towers
• construction and mining equipment