Electronic Grade Alloys
Electronic grade alloys and electrical alloys have excellent mechanical properties, generally have high thermal and electrical conductivity, and are highly resistant to corrosion. These alloys are often used for electronic applications in anodes, lead wires, fuel cells, battery casings, packaging and lids.
Nickel 200. This ferromagnetic, wrought commercially pure nickel has high ductility across wide temperature ranges. Nickel 200 also provides good corrosion resistance against moderately reducing environments. In the annealed condition, it has roughly the strength of mild steel. Nickel 200 is typically used for food processing equipment, electronic parts, aerospace electrical components, rocket motor casings, transducers, chemical processing in caustic environments, filters and screens.
Nickel 201. This alloy has a lower carbon content to prevent embrittlement by inter-granular carbon at elevated temperatures. Common applications include heat exchanger parts, electrical parts, aerospace components, reactors, chemical processing in caustic environments, filters and screens.
Nickel 205. Nickel 205 is similar to Nickel 200 but has compositional adjustments to enhance its performance in electrical and electronic applications. It is commonly used in anode and grids for electronic valves, lead wires, battery cases, transistor housings and magnetostrictive transducers.
Nickel 270. Made by powder metallurgy, Nickel 270 is the highest purity of the nickel alloys. It has a low base hardness but holds high ductility. Its high purity makes Nickel 270 useful for hydrogen thyratrons, electrical resistance thermometers, anode plates, passive cathodes, cathode shanks, plater bars and transistor enclosures.
Cupro Nickel. This copper alloy contains nickel and strengthening elements like iron and manganese. Cupro Nickel is highly resistant to corrosion in seawater, making it ideal for use in piping, heat exchangers and condensers in seawater systems, as well as exposed auto parts, marine hardware and condenser tubes in steam power plants. It is also used in silver-colored modern circulation coins.
Nickel Silver. Mostly comprised of Copper, Nickel and Zinc. Nickel silver is named for its silvery appearance but actually contains no silver. Its electrical resistance makes nickel silver ideal for heating coils, while its corrosion resistance is well-suited for marine fittings and plumbing fixtures.
Phosphor Bronze. This alloy consists of copper, tin and phosphorus, which is added as a deoxidizing agent during melting. Because of its solderability and resistance to fatigue, wear and chemical corrosion, phosphor bronze is used for electrical products, springs, bolts and marine hardware. Fair electrical conductivity makes it a desirable wire for springs and electrical contacts. This fair electrical conductivity, along with a low thermal conductivity, allow phosphor bronze to be used in cryogenics.