Inconel Alloy 725 Chemical Composition Properties, Grade, Charts and Online Pdf

Inconel Alloy 725 is a nickel-chromium-molybdenum-niobium alloy with very high strength and corrosion resistance that can be used in various environmental aplications, including severe conditions like high pressure and corrosive chemicals. The chemical composition is often consisting of nickel (58-63%), chromium (19-22.5%), molybdenum (7-9%), niobium (4-5%), and tantalum (2.75-4%). Given this hybrid, these attributes are highly resistance to pitting, crevice corrosion, and stress-corrosion cracking. The alloy 725 is important in the oil & gas, chemical processing and marine engineering industries. Classification of grades follows ASTM B805 and AMS 5766 standards. Charts and online PDF files that cover all of its mechanical features, heat treatment recommendations, and fabrication procedures aim at ensuring effective use of the material in the environments that frequently call for its help.

Inconel Alloy 725 Chemical Composition And Grade Table

Inconel Alloy 725 is a nickel-chromium-molybdenum-niobium alloy that is widely appreciated for its high magnitude strength and corrosion resistance in aggressive surrounding. Its chemical composition is typically composed of nickel (58% min), chromium (19-22.5%), molybdenum (7-9%), niobium (2.75-4%), iron (5.5% max), with trace amounts of aluminum, manganese, silicon, sulfur, and carbon being added. This alloy possesses superior mechanical properties under high temperature conditions, thus suitable for oil and gas industry, chemical manufacturing and seawater environments where corrosion resistance and high strength are vital.

Inconel Alloy 725 Composition Table
Elements Ni Cr Fe Mo Nb Ti Al Mn Si C P S
Min (%) 55 19 - 7 2.75 1 - - - - - -
Max (%) 59 22.5 9 9.50 4 1.70 0.35 0.35 0.20 0.30 0.015 0.010

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