BRUSH WELLMAN SR-200E is a grade of beryllium strengthened by a dispersion of beryllium oxide (2.0%). It has relatively high strength and ductility (a minimum of 10% elongation). Its uses include missiles, space vehicles, structural parts on both commercial and military satellites and optical support benches. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Be-5. Producer or source: Brush Wellman Inc..