Beryllium Copper Rod These strips and sheets are made with ALLOY 25, UNS C17200, ASTM CDA 172, ASTM B196, 251, 463; SAE J461, 463; AMS 4533, 4534, 4535; AMS4650, 4651; RWMA Class 4, QBe2, BrB2, DIN 2.1247, CW101C to EN.Various Thickness from 0.05 mm onwards are available in ready stock. Standard Widths are 200 to 300 mm Upto 1 mm, all material is in Coil form. 1 mm.