Inconel 625

Update : 2026-02-25

Inconel 625
Inconel 625 is a nickel-chromium-molybdenum alloy with excellent corrosion resistance and high-temperature strength. It provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking in aggressive environments. It exhibits good tensile, creep, and fatigue properties at elevated temperatures, along with excellent weldability and formability. It maintains stable performance in both corrosive and high-temperature conditions, making it a widely used alloy for critical industrial applications.
Equivalent Grade

UNS: N06625

W.Nr.: 2.4856

Chinese Standard: NS336

Standard

● Sheet/Plate: ASTM B443

Seamless Pipe: ASTM B444

Bar: ASTM B446

Alloy TypeNickel-Chromium-Molybdenum-Niobium Alloy (Nb-strengthened)
StandardSheet, Bar, Pipe, Tube, Fittings, Flange, Welding Products, etc.
Key Properties

● Excellent high-temperature strength and corrosion resistance, outstanding pitting and crevice corrosion resistance

Resistant to stress corrosion cracking, excellent oxidation and carburization resistance

Good hot and cold forming performance, excellent weldability, no heat treatment required after welding

Applicable EnvironmentHigh-Temperature Oxidizing/Reducing Environment, Seawater, Acid-Alkali-Salt Media, Chloride-Containing Corrosive Environment, Aerospace High-Temperature Scenarios, Chemical Strong Corrosion Scenarios
Typical ApplicationsAerospace Components, Offshore Engineering Equipment, High-Temperature Heat Exchangers, Chemical Reactors, Fgd Equipment, Nuclear Power Equipment, Precision Instrument Components, etc.


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