... -- C18150) with the forms of Rods, Flat bars, plates, strips, round bars, Square Bars, etc... Beryllium Copper Alloy--- Qualify for ASTM & ISO ... --UNS. C17510 In the forms of Round bars, Rods, Plates, flat bars, Square bars, Sheets, etc... Copper Alloys---------CuCrZr -- UNS. C18150 In ... the forms of Round bars, Rods, flat bars, Square bars, Plates, Sheets, etc... Beryllium bronze alloy