What is 718 in INCONEL 718?
Alloy 718, sold as Nickel Alloy 718 and Inconel 7l8, is a high-strength nickel-chromium material. This age-hardenable alloy offers excellent corrosion resistance and is easily machined. Other key properties of Nickel Alloy 718 and Inconel 7l8 include:
Excellent relaxation resistance
Can be made into the most complex components
Available in a wide temperature range -423°F(-253°C) to 1300°F(705°C)
Excellent tensile, fatigue, creep and rupture strength
Gamma Prime strengthened
Excellent oxidation resistance up to 1800°F(980°C)
Available in annealed temper, aged, cold worked or cold worked and aged
Due to its unique properties, Alloy 718 is popular in many different critical industries and applications, including:
Gas turbine components
Cryogenic tanks
Jet engines
Liquid fuel rocket engines and components
Fasteners and instrumentation components
Nuclear fuel element gaskets
Hot extrusion tools
Downhole shafts and strength bolts
Nickel Alloy 718 and Inconel 718 contain more than 50% nickel and a variety of different elements:
Ni 52.5%
Fe 18.5%
Cr 19%
Cb+Ta 5.13%
Mo 3.05%
Ti 0.9%
Al .5%
Co 1% Max
Gnee Steel is a distributor of Alloy 718 in tubes, pipes, plates, strips, sheets, round bars, flat bars, forging stock, hexagons, wire and extrusions. In addition, the mills that Gnee Steel works with to supply Alloy 718 meet or exceed industry standards from leading organizations such as ASTM, SAE, ASME, AECMA PrEN, DIN and ISO.
