Inconel 725

Catalog : inconel-alloy-725

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Inconel 725

INCONEL ® alloy 725 (UNS N07725) is a nickel-chromium-molybdenum-niobium alloy that is highly resistant to corrosion and is age hardenable for extremely high strength. It has essentially the same corrosion resistance as INCONEL alloy 625, which is widely used in a broad range of severely corrosive environments.The strength of age-hardened INCONEL alloy 725 is of the order of twice that of annealed alloy 625. Because the strength of alloy 725 is developed by heat treatment,not by cold work, ductility and toughness remain high.Also, strength can be imparted to large or non uniform sections that cannot be strengthened by cold work.

%Chemical Composition

Ti Nb Mo Cr Fe Ni
1.7 – 1 4 – 2.75 9.5 – 7 22.5 – 19 Balance 59 – 55
S P Si Mn C Al
(max) 0.01 (max) 0.015 (max) 0.2 (max) 0.35 (max) 0.03 (max) 0.35

Density & Melting Range

Melting Range (Celsius) Density
1343 – 1371 (g/cm) 8.31

Mechanical Properties

Modulus of Elasticity (GPa) Yield Strength (MPa) Tensile Strength (MPa)
204 427 855


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