Hastelloy X or in generic form, “Alloy X” is a solid solution strengthened nickel based alloy with
Cr, Fe, Mo, and Co as major constituents. The Hastelloy name applies to material produced by
Haynes International. The UNS designation is N06002.
It is used in applications up to 1500 deg F requiring relatively high strength. Other applications
require its excellent resistance to oxidation at temperatures up to 2200 deg F.
As a solid solution alloy, it cannot be further strengthened by heat treatment and is non
Solution annealing temperature typically range from 2100 to 2150 deg F.