Monel 400® is a popular, high performance nickel-copper alloy commonly used in critical and high performance applications. Monel 400® exhibits high strength, excellent resistance to acidic and alkaline environments, and good ductility and thermal conductivity. This alloy maintains its properties and performance in temps ranging from subzero to 1,000°F (538°C). Monel 400® can be hardened only via cold-working. Because it contains the same amounts of nickel and copper content as naturally-occurring nickel ore found in Ontario, Canada’s Sudbury mines, Monel 400® is considered a “puritan alloy.” This makes it unique among the Monel® alloy family.