1.1 This specification covers four grades of wrought zirconium and zirconium alloy bars, rod, and wire as follows: 1.1.1 R60001—Unalloyed grade,This specification covers UNS R60001, R60802, R60804, and R60901 wrought zirconium and zirconium alloy bars, rods, and wires. All material grades covered should conform to the required chemical composition requirements. Elements that are intentionally