This ductile iron hanger is used to suspend refractory for large industrial furnances. This hanger is used in multiple industries inluding but not limited to; glass, aluminum, copper, steel, and cement. The material, High Siclicon Ductile Iron (Hi-Si-Di), promotes a microstructure that provides a strong, wear and tear resistant casting. Made on our Hunter 10 (14x19) with one shell core per casting, this casting weighs approximately 1.62 lbs after finishing. Before shipment this part is brinell hardness tested and visually inspected.