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Alloy 718 W.Nr.2.4668 NiCr19Fe19Nb5 Bright Surface Hot forging Bar Rod Dia 50mm-150mm with aging Treatment
Inconel 718
| Alloy | % | Ni | Cr | Fe | Mo | Nb | Co | C | Mn | Si | S | Cu | Al | Ti |
| 718 | Min. | 50 | 17 | balance | 2.8 | 4.75 | 0.2 | 0.7 | ||||||
| Max. | 55 | 21 | 3.3 | 5.5 | 1 | 0.08 | 0.35 | 0.35 | 0.01 | 0.3 | 0.8 | 1.15 |
Inconel 718 Physical properties
| Density | 8.2 g/cm³ |
| Melting point | 1260-1340 ºC |
Inconel 718 Alloy minimum mechanical properties in the roomtemperature
| Alloy | Tensile strength Rm N/mm² | Yield strength R P0. 2N/mm² | Elongation A 5 % | Brinell hardness HB |
| Solution treatment | 965 | 550 | 30 | ≤363 |
718 Characteristic as below:1.workability
2.High tensile strength,endurance strength,creep strength and rupture strength at 700ºC.
3.High inoxidability at1000ºC. 4.Steady mechanical performance in the low temperature.
5.Good welding performance.
Inconel 718 Metallurgical structure
718alloy is Austenitic structure, precipitation hardening generate "γ" made it excellent mechanical performance. G rain boundary generate "δ" made it the best plasticity in the heat treatment.
Inconel 718 Corrosion resistance
718 alloy with extremely resistance to stress corrosion cracking and pitting ability in high temperature or low temperature environments, especially the inoxidability in the high temperature.
Inconel 718 Application field:The elevated temperature strength, excellent corrosion resistance and workability at 700ºC properties made it use in a wide range of high requirement environments. 1.Steam turbine 2.Liquid-fuel rocket 3.Cryogenic engineering
4.Acid environment
5.Nuclear engineering