Nickel-base Superalloy

ATI HX™ alloy (UNS N06002) is an austenitic nickel-base super alloy containing approximately 22 percent chromium for outstanding resistance to oxidation at high temperatures. In addition, the alloy, which is solid solution strengthened, possesses exceptional strength at elevated temperatures. The ATI HX™ alloy has good high temperature and stress rupture properties above 1450°F (788°C) and can be used for applications up to 2200°F (1204°C).

With the high levels of chromium, nickel and molybdenum in the material, ATI HX™ alloy exhibits levels of corrosion resistance similar to high nickel alloys more customarily used in corrosion applications.

The ATI HX™ alloy exhibits good fabricability. The work hardening rate of the alloy is comparable to that of the austenitic stainless steels. Machinability is good in the annealed condition. The alloy can be welded by most of the fusion and resistance welding processes.

ATI HX™ alloy can be produced by AOD refining or vacuum induction melting. Vacuum arc or electroslag remelting procedures may be used to further refine the material.