COPPER ALLOY No. 694 is a non-heat-treatable copper-zinc-silicon alloy for applications requiring a combination of high strength and good resistance to corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-288. Producer or source: Copper alloy producers.