Inconel 718 (Alloy 718, UNS N07718) Plate/Sheet Description:
Inconel is a registered trademark name of Special Metals Corporation. Inconel 718 is a Gamma Prime strengthened alloy with excellent mechanical properties at elevated temperatures, as well as cryogenic temperatures up to around 1300 F. It is readily worked and can be welded in either the annealed or the age condition.
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) Plate/Sheet 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
|
-
|
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℃)
|
Inconel 718 (Alloy 718, UNS N07718) Plate/Sheet Applications:
- Aerospace Industry
- Aircraft Engine Components: Inconel 718 is commonly used in turbine blades, discs, and shafts due to its ability to withstand high temperatures and mechanical stresses.
- Structural Parts: Its strength-to-weight ratio makes it suitable for critical structural components in aircraft and spacecraft.
- Oil and Gas Industry
- Downhole Tools: Inconel 718 is utilized in drill pipes, casing, and tubing that operate in high-pressure and corrosive environments.
- Pipelines and Valves: Its corrosion resistance ensures longevity and reliability in pipelines transporting harsh fluids and gases.
- Offshore Platforms: Components exposed to seawater and extreme conditions benefit from its robust properties.
- Chemical Processing
- Heat Exchangers: Its ability to withstand high temperatures and corrosive substances ensures efficient and long-lasting heat exchange processes.
- Storage Tanks: Used in storage solutions for corrosive chemicals and high-temperature materials.
- Power Generation
- Gas Turbines: Inconel 718 components in gas turbines maintain performance and structural integrity under high-temperature and high-stress conditions.
- Automotive Industry
- High-Performance Engines: Used in turbocharger rotors and other engine parts that must endure high temperatures and mechanical wear.
- Exhaust Systems: Its resistance to oxidation makes it suitable for exhaust components subjected to high thermal conditions.
Packing:
Our Inconel 718 materials are carefully handled during storage and transportation to preserve the quality of our product in its original condition.
FAQs
Is Inconel 718 weldable?
Yes, Inconel 718 offers excellent weldability, including resistance to post-weld cracking, making it easier to fabricate than many other high-strength alloys.
Can Inconel 718 withstand high temperatures?
Yes, Inconel 718 maintains its strength and corrosion resistance in environments up to 1300°F (704°C), with short-term exposure up to 1800°F (982°C).
How does Inconel 718 resist corrosion?
Its high nickel and chromium content provides excellent resistance to oxidation, pitting, and crevice corrosion, even in harsh chemical environments.
Specification
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
|
-
|
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℃)
|