Inconel 725   A nickel-chromium-molybdenum-niobium alloy that is highly resistant to corrosion and is age hardenable for extremely high strength. The strength of this alloy is developed by heat treatment to achieve high ductility and toughness. The alloy is resistant to hydrogen embrittlement and stress-corrosion cracking.   UNS Trademark N07725 Inconel725   Inconel 725 Chemical composition Alloy % Ni Cr Mo Al Ti Fe Nb Inconel 725 Min. 55 19 7 1 balance 2.75 Max. 59 22.5 9.5 0.35 1.7 4 Inconel 725 Application field ： Hangers, landing nipples, side pocket mandrels Polished bore receptacles in sour gas service. High-strength fasteners in marine applications.

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