General Description

Incoloy 925 (UNS N09925) is an agehardenable nickel based alloy with additions of molybdenum, copper, titanium and aluminum. Alloy 925 offers corrosion resistance comparable with that of alloy 825, but with higher strength obtained by age hardening. The combination of nickel and chromium renders protection in both oxidizing and reducing atmospheres. The high nickel content also gives resistance to chloride ion stress-corrosion cracking. Pitting and crevice corrosion resistance is also excellent.

Chemical Composition

Grade Ni% Cr% Mo% Fe% Al% Ti% C% Mn% Si% Cu% Nb% S%
Incoloy 925 42.0-46.0 19.5-22.5 2.5-3.5 Min 22 0.1-0.5 1.9-2.4 Max 0.03 Max 1.0 Max 0.5 1.5-3.0 Max 0.5 Max 0.03


UNS N09925


Can be made according to customers’ specifications

Physical Properties

Density:8.08 g/cm3

Melting Point: 1311°C-1366 °C

Electrical Resistivity: 1.17 μΩ m

Mechanical Properties

Solution Annealed

Tensile: Min 550 MPa

Yiled: Min 250 MPa

Elongation: Min 35%

Solution Annealed & Aged

Tensile: Min 1154 MPa

Yiled: Min 832 MPa

Elongation: Min 27%

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