Inconel is a family of austenitic nickel chromium based super alloys.
Inconel alloys are oxidation corrion resistance materials well suited for service in extreme environments subjects to pressure and
heat.When heated,Inconel forms a rhick,stable,passivating oxide layer protecting the surface from further attack.Inconel retains
strength over a wide temperature range,attrative for high temperature applications where aluminum and steel would succumb to creap
as a result of thermally induced crystal vacancies.Inconel’s high temperature strength is developed by solid solution
strengthening or precipitation hardening,depending on the alloy.

Inconel 718 is a nickel-chromium-molybdenum alloy designed to resist a wide range of severely corrosive environments, pitting and crevice corrosion. This nickel steel alloy also displays exceptionally high yield, tensile, and creep-rupture properties at high temperatures. This nickel alloy is used from cryogenic temperatures up to long term service at 1200° F. One of the distinguishing features of Inconel 718′s composition is the addition of niobium to permit age hardening which allows annealing and welding without spontaneous hardening during heating and cooling. The addition of niobium acts with the molybdenum to stiffen the alloy’s matrix and provide high strength without a strengthening heat treatment. Other popular nickel-chromium alloys are age hardened through the addition of aluminum and titanium. This nickel steel alloy is readily fabricated and may be welded in either the annealed or precipitation (age) hardened condition. This superalloy is used in a variety of industries such as aerospace, chemical processing, marine engineering, pollution-control equipment, and nuclear reactors.