Inconel 718 (Alloy 718, UNS N07718) Bar/Rod Description:
Inconel 718 is a nickel-chromium alloy with high strength and corrosion resistance. It exhibits mechanical properties at elevated temperatures. It is specified for use in aerospace, automotive and marine engineering given that it offers suitable weldability and formability. It demonstrates oxidation resistance and is appropriate for severe service environments. Its material properties allow its use in components that encounter high thermal and mechanical loads.
Other Trade Names: Alloy 718, Nickel 718, W.NR 2.4668, UNS N07718, AWS 013, Haynes® 718, Nicrofer® 5219, Allvac® 718, Altemp® 718

Inconel 718 (Alloy 718, UNS N07718) Bar/Rod Specifications:
Metal type: UNS N07718
Standard: ASTM B637, AMS 5662, AMS 5663, AMS 5664, PWA 1009, PWA 1010, GE B50TF15
Chemical Composition, %.
|
Ni |
Fe |
Mo |
Mn |
Si |
Cr |
C |
Max |
55.0 |
Bal |
3.30 |
0.35 |
0.35 |
21.0 |
0.08 |
Min |
50.0 |
|
2.80 |
|
|
17.0 |
|
Inconel 718 (Alloy 718, UNS N07718) Bar/Rod Applications:
Inconel 718 is used for gas turbine components, cryogenic storage tanks, jet engines, pump housings and parts, rocket motors and thrust reversers, spacer grids for nuclear fuel elements and warm forming tools.
Specification
Chemical Composition, %
-
|
Ni
|
Fe
|
Mo
|
Mn
|
Si
|
Cr
|
C
|
Max
|
55.0
|
Bal
|
3.30
|
0.35
|
0.35
|
21.0
|
0.08
|
Min
|
50.0
|
-
|
2.80
|
-
|
-
|
17.0
|
-
|
Mechanical and Physical Properties
Density
|
Approximately 8.19 g/cm³
|
Melting Point
|
1260 - 1320°C
|
Thermal Conductivity
|
11.4 W/m·K
|
Coefficient of Thermal Expansion
|
13.0 x 10⁻⁶/K (from room temperature to 100°C)
|
Electrical Resistivity
|
Approximately 6.9 μΩ·m
|
Tensile Strength
|
1200MPa
|
Yield Strength
|
1000MPa
|
Elongation
|
12%
|
Strain Rate
|
Up to 0.20%/1000h at high temperatures (~650℃)
|