As a leading Chinese Monel alloy supplier, AEETHER manufactures and produces different sizes of Monel Alloy 401 wires. MONEL® nickel-copper alloy 401 (UNS N04401) is used primarily in specialized electrical and electronic applications. Alloy 401 is readily autogenously welded, in the thin sections in which it is most often used, by the gas-tungsten-arc process.