ELKONITE 1W3, 3W3, 3W53, 5W3, 10W3, 10W53, 30W3, 40W3, 50W3,and 2050C are a series of tungsten-copper compositions with the tungsten content ranging from 50 to 90 wt.%. These alloys are normally made by the press-sinter-infiltrate (PSI) method. This datasheet provides information on composition, physical properties, microstructure, and bend strength. It also includes information on heat treating. Filing Code: W-25. Producer or source: CMW Inc.