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Inconel 625 Nickel-chromium Alloy Forgings


Inconel Alloy 625 is a non-magnetic, corrosion and oxidation resistant, nickel-chromium alloy. The high strength of Inconel 625 is the result of the stiffening combination of molybdenum and niobium on the nickel chromium base of the alloy. Inconel 625 has tremendous resistance to a wide range of unusually severe corrosive environments including high-temperature effects such as oxidation and carburization. Its outstanding strength and toughness in temperature ranges from cryogenic temperatures to high temperature up to 2000° F (1093° C) are derived primarily from the solid solution effects of the refractory metals Columbium and molybdenum in a nickel-chromium matrix. Nickel chromium alloy 625 has excellent resistance to pitting and crevice corrosion, high corrosion-fatigue strength, high tensile strength as well as resistance to stress corrosion cracking to chloride ions — making it an excellent choice for sea-water applications. Inconel is used in aerospace applications as well as marine applications. Common applications for this alloy are springs, seals, bellows for submerged controls, electrical cable connectors, fasteners, flexure devices, and oceanographic instrument components.

Nickel alloy 625 chemical composition

Nickel: 58.00 min

Chromium: 20.0-23.0

Iron: 5 max

Molybdenum: 8.0-10.0

Columbium + Tantalum: 3.15-4.15

Manganese: 0.50 max

Carbon: 0.10 max

Silicon: 0.50 max

Phosphorus: 0.015 max

Sulfur: 0.015 max

Aluminum: 0.40 max

Titanium: 0.40 max

Cobalt: 1 .00 max

Physical properties of inconel 625

Density: 0.305 lbs/in3, 8.44 g/cm3Mean

Annealed: 1.0006

Melting Range: 2350 -2460 ° F (1290 -1350 °C)

A nickel-chromium-molybdenum-niobium grade, Alloy 625, commonly referred to as Inconel 625, offers outstanding corrosion resistance and superb weldability.

Applications of inconel 625 forgings

Alloy 625 can be used in a variety of applications including:

Aircraft ducting and exhaust systems

Engine thrust-reverser systems

Turbine shroud rings

Bellows, expansion joints

Gaskets and damper seals

Weld overlay and spacers for heat recovery systems

Furnace muffles

Valve seats and components

Shanghai Lockheed Aviation Materials Co., Ltd is a company that professionally design and produce Superalloy forging products.
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