Inconel 718/GH4169/UNS N07718/2.4668/NiCr19Fe19Nb5Mo3 Bar/Rod/Wire/Forging/Plate/Strip Excellent Mechanical Properties In High-stress Environments
Inconel 718 (UNS N07718 / GH4169 / 2.4668 / NiCr19Fe19Nb5Mo3) is a precipitation-hardenable nickel-chromium alloy known for exceptional high-temperature strength, creep resistance, and corrosion resistance. Usable from cryogenic temperatures up to ~700°C, it offers excellent tensile, fatigue, and rupture strength. The alloy contains niobium, molybdenum, and iron, enhancing mechanical properties and oxidation resistance. It is easily weldable, machinable, and maintains stability under extreme heat and stress. 718 inconel available in Bar, Rod, Wire, Forging, Plate, and Strip, 718 alloy is widely used in aerospace, gas turbines, nuclear reactors, and oil & gas sectors for critical parts like turbine discs, fasteners, and structural components. It balances high performance with outstanding workability.
| Chemical Composition Wt.% | % | Fe | Cr | P | Cu | Ni | Al | Ti | C | Mn | Si | S | Mo |
| Min | | 23.5 | | | Bal. | | 0.3 | | | | | |
| Max | 4 | 26.5 | 0.013 | 0.07 | Bal. | 0.5 | 0.7 | 0.1 | 0.5 | 0.8 | 0.013 | 1.5 |
| Alloy 718 Physical Constants | Density(g/cm³) | 8.89 |
| Melting Range(℃) | 1352-1375 |
Trade Code
Overview of Inconel Alloy 718
718 inconel is a nickel-chromium alloy known for its exceptional high-temperature strength, corrosion resistance, and outstanding weldability, especially in the age-hardened condition. It is precipitation-hardenable, making it one of the most widely used superalloys in aerospace, energy, and marine industries.
Key Features of Inconel Alloy 718 (All Forms)
Excellent High-Temperature Strength
- Maintains strength up to 700°C (1300°F).
- Superior creep-rupture resistance, ideal for long-term service at high temps.
Outstanding Corrosion and Oxidation Resistance
- Excellent resistance to oxidation, chloride stress corrosion, pitting, and general corrosion in harsh environments.
- Performs well in aerospace, chemical, and marine atmospheres.
Precipitation Hardening for High Strength
- Strengthened via precipitation of gamma prime (γ') and gamma double prime (γ″) phases.
- Very high yield, tensile, and fatigue strength even after long service at elevated temperatures.
Excellent Weldability
- Unlike many high-strength alloys, Inconel 718 has excellent weldability without risk of post-weld cracking.
- Used extensively in welded structural components.
Resistance to Mechanical Fatigue & Stress
- High resistance to mechanical fatigue, thermal fatigue, and vibration.
- Suitable for rotating parts like turbine discs and shafts.
718 alloy Form-Specific Applications
Bar / Rod
- Used for aircraft engine parts, fasteners, bolts, shafts, and load-bearing structures in hot zones.
- High tensile strength and fatigue resistance.
Wire
- Inconel 718 wire is ideal for spring wire, lock wire, welding filler wire, and high-temp fastening systems.
- Inconel 718 filler wire has good ductility and strength.
Forging
- Forged into turbine discs, rings, shafts, flanges, and rotor parts.
- Excellent stability under high mechanical stress.
Plate / Strip
- Used in gas turbines, rocket engines, chemical vessels, and nuclear power plant components.
- Great formability and post-weld strength retention.
Inconel 718 Pricing & Supplier Guide: Get Competitive Quotes for Your Project
If you are looking for competitive Inconel 718 price or reliable 718 Inconel suppliers, Chengxin Alloy is your trusted source. We are a professional Inconel 718 manufacturer with extensive experience in producing high-quality Alloy 718 tubing, bars, rods, plates, and forgings. Our Inconel 718 price per kg and Inconel 718 price per pound are highly competitive, with stable supply and global shipping. As one of the leading Inconel tubing suppliers and Alloy 718 suppliers, we provide customized solutions to meet your project’s technical requirements while helping you control costs. Whether you need Inconel 718 cost per kg or Inconel 718 price per lb for small batches or large-scale orders, we are here to support you with premium quality, fast delivery, and professional service.
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