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INCONEL alloy 718 (UNS N07718/W.Nr. 2.4668) is high-strength, corrosion-resistant nickel-chromium utilized at temperatures between -423° and 1300°F.Excellent resistance to oxidation up to 1800 degrees Fahrenheit, age-hardenable, and capable of being welded in fully aged form.Usually offered in solution-annealed temper, it is also available cold-worked, aged, or cold-worked and aged.
JN inconel 718 product forms include forgings, round bars, flanges, plates, strips, pipe fittings, tubes and fasteners.
Inconel 718 Similar Grades
GH4169, GH169 (China)
NC19FeNb (France)
NiCr19Fe19Nb5, Mo3 (Germany)
NA 51 (UK)
Inconel718, UNS NO7718 (USA)
NiCr19Nb5Mo3 (ISO)
Grade | C≤ | Mn≤ | Si≤ | S≤ | Cu≤ | Ni | Cr | Co≤ | Mo | Ti | Al | Fe | Nb+Ta | P≤ | B≤ | Ti |
Inconel 718 | 0.08 | 0.35 | 0.35 | 0.015 | 0.30 | 50.0-55.0 | 17.0-21.0 | 1.0 | 2.8-3.3 | 0.65-1.15 | 0.2-0.8 | Remainder | 4.75-5.5 | 0.015 | 0.006 | 0.65-1.15 |
Mechanical properties | Tensile, min, ksi[MPa] | Yield, min, ksi[MPa] | Elongation, %(min) |
Alloy 718 | 185[1275] | 150[1034] | 12 |
STANDARD | WERKSTOFF NR. | UNS | JIS |
Inconel 718 | 2.4668 | N07718 | NCF 718 |
High temperature strength: The alloy can maintain good strength and toughness at temperatures up to about 700°C, mainly due to its internal stable γ' phase and γ'' phase structure, which can effectively resist deformation and fracture at high temperatures.
Low temperature stability: Even at extremely low temperatures, Inconel 718 can maintain its excellent physical and mechanical properties, which makes it also have excellent application performance in low temperature environments.
Excellent welding and processing: The alloy has good weldability and processing, whether in the annealed state or the aged state, it can be welded and machined in various forms to meet the manufacturing needs of complex components.
Excellent corrosion resistance: Inconel 718 has good tolerance to a variety of corrosive environments, including oxidizing, reducing and salt spray environments, which enables it to maintain long-term stability and reliability in harsh environments.
Product | Standard | Show |
Inconel 718 Bars | ASTM B637 / AMS 5662 / AMS 5663 / AMS 5664 / PWA 1009 / PWA 1010 / GE B50TF15 |  |
Inconel 718 Sheet and Plate | ASTM B670 / AMS 5596 / AMS 5597 / ASTM B637 |  |
Inconel 718 Tube | AMS 5589 / AMS 5590 |  |
Inconel 718 Pipe | AMS 5589 / AMS 5590 |  |
Inconel 718 Forging | ASTM B637 / AMS 5562 / AMS 5663 / AMS 5664 / PWA 1009 / PWA 1010 / GE B50TF15 |  |
Cryogenic engineering
Acid environment
Nuclear Engineering
Steam turbine
Liquid fuel rocket
