Introduction:
1. Inconel 718 is a nickel-based superalloy known for its exceptional strength, corrosion resistance, and versatility. It is commonly available in various forms such as wire, sheet, plate, bar, and forged components. Inconel 718 is widely used in industries such as aerospace, gas turbines, and other high-temperature environments due to its outstanding mechanical properties and resistance to corrosion and oxidation.
2. The alloy offers high strength at elevated temperatures, excellent cryogenic properties, and good weldability, making it suitable for a wide range of applications. Inconel 718 is known for retaining its mechanical properties in extreme conditions, including high-temperature and cryogenic environments.
3. Overall, Inconel 718 is a preferred material for critical applications that demand high performance in challenging operating conditions.
Parameter:
Inconel 718 is a nickel-based superalloy known for its exceptional strength, corrosion resistance, and versatility. The chemical composition typically includes:
Nickel (Ni): Approximately 50-55%
Chromium (Cr): Around 17-21%
Iron (Fe): Around 18.5%
Small amounts of other elements such as niobium, molybdenum, titanium, and aluminum
| Item | C | Mn | Fe | P | S | Si | Cu | Ni | Co | Al | Ti | Cr | Nb+Ta | Mo | B |
| Inconel 718 | ≤0.08 | ≤0.35 | rest | -- | ≤0.01 | ≤0.35 | ≤0.3 | 50-55 | ≤1 | 0.2-0.8 | -- | 17-21 | 4.75-5.5 | 2.8-3.3 | -- |
| AMS Number | Alloy | Type | UNS | Cross Ref. Spec | Misc./Shape |
| AMS 5590 | Inconel 718 | Nickel | N07718 | - | Tubing |
| AMS 5596 Foil | Inconel 718 | Nickel | N07718 | - | Foil |
| AMS 5596 Plate | Inconel 718 | Nickel | N07718 | - | Plate |
| AMS 5596 Sheet | Inconel 718 | Nickel | N07718 | - | Sheet |
| AMS 5596 Strip | Inconel 718 | Nickel | N07718 | - | Strip |
| AMS 5597 Plate | Inconel 718 | Nickel | N07718 | - | Plate |
| AMS 5597 Sheet | Inconel 718 | Nickel | N07718 | - | Sheet |
| AMS 5597 Strip | Inconel 718 | Nickel | N07718 | - | Strip |
| AMS 5662 Bar | Inconel 718 | Nickel | N07718 | - | Bar |
| AMS 5662 Custom Tube | Inconel 718 | Nickel | N07718 | - | Custom Tube |
| AMS 5662 Ring | Inconel 718 | Nickel | N07718 | - | Ring |
| AMS 5663 Bar | Inconel 718 | Nickel | N07718 | - | Bar |
| AMS 5663 Custom Tube | Inconel 718 | Nickel | N07718 | - | Custom Tube |
| AMS 5663 Ring | Inconel 718 | Nickel | N07718 | - | Ring |
| AMS 5664 Bar | Inconel 718 | Nickel | N07718 | - | Bar |
| AMS 5664 Custom Tube | Inconel 718 | Nickel | N07718 | - | Custom Tube |
| AMS 5664 Ring | Inconel 718 | Nickel | N07718 | - | Ring |
| AMS 5832 | Inconel 718 | Nickel | N07718 | - | Wire |
| AMS 5962 Bar | Inconel 718 | Nickel | N07718 | - | Bar |
| AMS 5962 Wire | Inconel 718 | Nickel | N07718 | - | Wire |
The characteristics of Inconel 718 wire include:
1. High Strength: It offers high strength and excellent mechanical properties at both low and high temperatures.
2. Corrosion Resistance: The alloy demonstrates outstanding resistance to corrosion and oxidation, particularly in high-temperature environments.
3. Versatility: Inconel 718 is versatile and finds application in aerospace, gas turbines, and other high-temperature environments.
4. Cryogenic Properties: It retains its strength and toughness at cryogenic temperatures, making it suitable for use in extreme conditions.
5. Weldability: The alloy can be welded using common techniques, allowing for ease of fabrication and assembly.
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Characteristics:
- High-Temperature Strength: Inconel 718 Wire demonstrates excellent high-temperature strength, allowing it to withstand high-temperature environments while maintaining its mechanical performance and resisting thermal creep and deformation.
- Corrosion Resistance: It possesses outstanding corrosion resistance, with the ability to withstand corrosion from acids, alkalis, salts, and other corrosive media, thereby extending its service life.
- Oxidation Resistance: Inconel 718 Wire exhibits good resistance to oxidation and thermal corrosion at high temperatures, maintaining stability.
- Thermal Stability: It demonstrates good thermal stability, enabling it to maintain structural and performance stability under extreme temperature conditions.
Advantages:
- High Strength: Inconel 718 Wire offers exceptional high-temperature strength and mechanical performance, making it suitable for withstanding the high-temperature and high-pressure operating conditions of aerospace engines.
- Corrosion Resistance: It has excellent resistance to corrosive media such as acids, alkalis, and salts, ensuring stability and extending the service life, even in harsh environments.
- Oxidation Resistance: Inconel 718 Wire provides excellent resistance to oxidation and thermal corrosion at high temperatures, protecting engine components.
- Processability: It exhibits good processability, facilitating the manufacturing of complex-shaped engine components.
Q & A:
Q: What is Inconel 718?
A: Inconel 718 is a nickel-based superalloy known for its exceptional strength, corrosion resistance, and versatility in high-temperature and corrosive environments.
Q: What are the typical applications of Inconel 718?
A: This alloy is commonly used in industries such as aerospace, gas turbines, and other high-temperature environments due to its outstanding mechanical properties and resistance to corrosion and oxidation.
Q: What are the key characteristics of Inconel 718?
A: Inconel 718 offers high strength at elevated temperatures, excellent cryogenic properties, good weldability, and exceptional resistance to corrosion and oxidation.
