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INCONEL ALLOY 625

INCONEL ALLOY 625

General Properties Alloy 625 is associate degree solid solution nickel-chromium-molybdenum-niobium alloy possessing a rare combination of outstanding corrosion resistance let alone high strength from refrigerant temperatures to 1800°F (982°C). The strength of Alloy 625 comes from the...

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General Properties

Alloy 625 is associate degree solid solution nickel-chromium-molybdenum-niobium alloy possessing a rare combination of outstanding corrosion resistance let alone high strength from refrigerant temperatures to 1800°F (982°C).


The strength of Alloy 625 comes from the solid-solution hardening of the nickel-chromium matrix by the presence of Mo and atomic number 41. Therefore, precipitation-hardening treatments aren't needed.


The chemical composition of Alloy 625 is additionally chargeable for its outstanding corrosion resistance in an exceedingly kind of severe in operation environments together with resistance to oxidization and carburization in warmth service. The alloy is immune to roughness, crevice corrosion, impingement corrosion, intergranular attack and is nearly resistant to chloride stress corrosion cracking.


Alloy 625 is simply welded and processed by normal search fabrication practices.

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Applications

  • Aerospace parts – bellows and growth joints, ducting systems, reaction-propulsion engine exhaust systems, engine thrust-reversers, rotary engine shroud rings

  • Air Pollution management – chimney liners, dampers, flue gas desulfurization (FGD) parts

  • Chemical process – instrumentation handling each oxidizing and reducing acids, super-phosphoric acid production

  • Marine Service – pipe bellows, Navy ship exhaust systems, submarine auxiliary propulsion systems

  • Nuclear business – reactor core and rod parts, waste reprocessing instrumentation

  • Offshore Oil and Gas Production – waste flare gas stacks, piping systems, riser overlayer, bitter gas piping and conduit

  • Petroleum processing – waste flare gas stacks

  • Waste Treatment – waste burning parts



Corrosion Resistance

The extremely alloyed chemical composition of Alloy 625 imparts outstanding corrosion resistance in an exceedingly style of severely corrosive environments. The alloy is just about proof against attack in gentle conditions like the atmosphere, contemporary and ocean water, neutral salts and alkalescent solutions. Nickel and Cr offer resistance to oxidizing solutions and therefore the combination of nickel and atomic number 42 offer resistance in non-oxidizing environments. atomic number 42 additionally makes Alloy 625 proof against erosion and crevice corrosion, whereas metallic element acts as a stabilizer throughout fastening to forestall intergranular cracking. The high nickel content of Alloy 625 makes it just about proof against chloride stress corrosion cracking.


The alloy resists attack by mineral acids like hydrochloric, nitric, phosphorous and chemical element, and to alkalis and organic acids in each oxidizing and reducing conditions.



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