For many chemical processes, the moderate strength exhibited by the family of Ni-Cr-Mo
(C-type) alloys is more than sufficient. Nevertheless, some applications require a material
with even greater strength. For this reason, a new nickel alloy, essentially Ni-21Cr-17Mo
(wt. %), has been recently developed and introduced into the market. This new alloy not
only exhibits corrosion resistance comparable to other C-type alloys, but it can also be
strengthened through a two stage treatment to obtain approximately double the yield
strength. This heat treatment results in the formation of Ni2(Mo, Cr) domains which
strengthen the alloy while leaving it with good ductility.