Inconel 625 is a corrosion and oxidation resistant nickel alloy that is used both for its high strength and outstanding aqueous corrosion resistance. Its outstanding strength and toughness is due to the addition of niobium which acts with the molybdenum to stiffen the alloy’s matrix. Alloy 625 has excellent fatigue strength and stress-corrosion cracking resistance to chloride ions. This nickel alloy has excellent weldability and is frequently used to weld AL-6XN. This alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Some typical applications Inconel 625 is used in are chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors.
Character
lHigh creep-rupture strength
lOxidation resistant to 1800° F
lSeawater pitting and crevice corrosion resistant
lImmune to chloride ion stress corrosion cracking
lNon-magnetic
Application
lAircraft ducting systems
lAerospace
lJet engine exhaust systems
lEngine thrust-reverser systems
lSpecialized seawater equipment
lChemical process equipment
Equal grade
UNS N06625, Alloy 625, NS336, NS3306, 2.4856, NiCr22Mo9Nb
Chemical composition (%)
Nickel…………………………………………….…………58.0 min.
Chromium………………………………………..…………20.0-23.0
Iron………………………………………………..………….5.0 max.
Molybdenum……………………………….……...…………8.0-10.0
Niobium (plus Tantalum)………………………..………….3.15-4.15
Carbon……………………………………………..……….0.10 max.
Manganese………………………………………....……….0.50 max.
Silicon……………………………….…………...…………0.50 max.
Phosphorus……………………………………….………..0.015 max.
Sulfur…………………………………..……….…..……..0.015 max.
Aluminum…………………………………………………..0.40 max.
Titanium……………………………….……………………0.40 max.
Cobalt……………………………………………………….1.0 max.
Standards
Rod, Bar, Wire and Forging Stock - ASTM B 446/ASME SB 446 (Rod & Bar), ASTM B 564/ASME SB 564 (Forgings), SAE/AMS 5666 (Bar, Forgings, & Rings), SAE/AMS 5837 (Wire)
Plate, Sheet and Strip - ASTM B 443/ASTM SB 443 (Plate, Sheet & Strip), SAE/AMS 5599 & 5869 & MAM 5599 (Plate, Sheet & Strip)
Huge stock of plate/sheet of EU/US/Japan origin. Plenty of bars in stock. Strip could be delivered with 2 weeks. Delivery of other products please contact A-one Alloy for confirmation.
* MONEL, INCONEL, and INCOFLUX aretrademarks of the Special Metals Corporation group of companies.