High Strength Nickel-Base Alloy

INTRODUCTION
ATI 625™ alloy (UNS N06625) is a high strength nickel-base alloy that combines good strength and toughness with excellent oxidation and corrosion resistance. The addition of molybenum and niobium results in the solid solution strengthening of the alloy and providing the outstanding corrosion resistance. Initially regarded as a purley solid solution strengthened alloy, a low carbon version of the alloy can be age hardened by the precipitation that allows significant strengthening. This is a valuable tool that can be used in heavy sections where cold working is not possible. ATI 625™ alloy is easily welded which permits its use in a wide variety of fabricated products. The alloy is produced by vacuum induction melting followed by electroslag remelting. ATI 625™ alloy is widely used in aerospace for airframe and jet engine applications as well as in the chemical, nuclear, and marine industries because of its combination of high tensile and creep strengths and oxidation and corrosion resistance.