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Inconel 718

Material: Inconel 718, UNS N07718, 2.4668

INCONEL alloy 718 (UNS N07718/W.Nr. 2.4668) is a high-strength, corrosion-resistant nickel chromium material used at -423° to 1300°F. Age hardenable and may be welded in fully aged condition, Excellent oxidation resistance up to 1800 degrees F. Typically sold in the solution annealed temper, but can be ordered aged, cold worked, or cold worked and aged.

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Inconel 718 Introduction：

Inconel 718 is a nickel alloy with good comprehensive properties within the temperature range of -253 to 700℃. Its yield strength below 650℃ ranks first among deformed high-temperature alloys. It also has good fatigue resistance, radiation resistance, oxidation resistance, corrosion resistance, as well as good processing performance, welding performance and stability. It can manufacture various parts with complex shapes.

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)

Inconel 718 Composition

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

Inconel 718 Mechanical Properties

Mechanical properties	Tensile, min, ksi[MPa]	Yield, min, ksi[MPa]	Elongation, %(min)
Alloy 718	185[1275]	150[1034]	12

Inconel 718 Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	JIS
Inconel 718	2.4668	N07718	NCF 718

Inconel 718 Advantages

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.

Inconel 718 Specifications

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