Monel 400 is a nickel-copper alloy (about 67% Ni – 23% Cu) that
is resistant to sea water and steam at high temperatures as well as to
salt and caustic solutions. Alloy 400 is a solid solution alloy that can
only be hardened by cold working. This nickel alloy exhibits
characteristics like good corrosion resistance, good weldability and
high strength. A low corrosion rate in rapidly flowing brackish or
seawater combined with excellent resistance to stress-corrosion cracking
in most freshwaters, and its resistance to a variety of corrosive
conditions led to its wide use in marine applications and other
non-oxidizing chloride solutions. This nickel alloy is particularly
resistant to hydrochloric and hydrofluoric acids when they are
de-aerated. As would be expected from its high copper content, alloy 400
is rapidly attacked by nitric acid and ammonia systems.Features: High durabilityCorrosion resistantFlawless finish Longer lifeLow maintenance Chemical Composition, %
CMnSSiNiCuFe.30 max2.00 max.024 max.50 max63.0 min28.0-34.02.50 max