... Copper Alloy. These alloys contain Nickel with Copper and small amounts of Iron and Manganese. A typical alloy within this range is the 400 ... grade (UNS N04400). This contains nominally 65% Nickel, 32 Copper, a maximum ... gas, Welding industries, Marine components, Aircraft rivets, Spectacle frames Nickel Copper Alloy/CuNi44Mn1/CuNi45/CuNi44