Equivalent designations Alloy 725; UNSN07725 Nickel Alloy 725 Introduction: 1.Available Shapes: Bar,Rod wire,spring,bolt,fittings Inconel 725 is highly resistant to corrosion and is age hardenable for extremely high strength. It is used in a broad range of severe corrosive environments. The strength of age-hardened A725 is twice that of A625 annealed. Strength in A725 is obtained by heat treatment and can also be cold worked for even higher strength. There is also a high resistance in reducing and oxidizing environments and increased resistance to pitting and crevice corrosion in sea water and stress corrosion cracking. Inconel 725 Trade Name: Alloy 725; UNSN07725 Chemical composition Alloy % Ni Cr Mo Al Ti Fe Nb 725 Min. 55 19 7 1 balance 2.75 Max. 59 22.5 9.5 0.35 1.7 4 Physical properties Density 8.31g/cm³ Melting point 1271-1343℃ mechanical properties Alloy state Tensile strength Rm N/mm² Yield strength R P0. 2N/mm² Elongation A 5 % Brinell hardness HB Annealing treatment 850 400 30 - Solution treatment 600 300 30 ≤220 Inconel 725 Specifications: Wire Sheet Strip Pipe Rod ASTM B805  ASME 2217 / / / ASTM B805 ASME 2217 Inconel 725 Application field: 1.Hangers, side pocket madrels, springs and polished bore receptacles for sour gas service. 2.The petrochemical and processing industries are good candidates for this alloy. 3.Alloy 725is also used for high strength fasteners in marine applications to resist corrosion, pitting and crevice attack in sea water.