Learn about Inconel 718 alloy fasteners
Inconel 718 is a precipitation-hardening nickel-chromium alloy known for its excellent strength, corrosion resistance, and weldability, making it a popular choice for fasteners used in high-stress, high-temperature, and corrosive environments. These fasteners, including bolts, nuts, washers, and studs, are commonly used in the aerospace, oil and gas, and power generation industries.
What is the strength of Inconel 718 bolts?
185-220 ksi
Twice as strong as its sister alloy, Inconel 625, Inconel 718 is known for its exceptionally high strength after age hardening (185-220 ksi tensile strength). Inconel 718 bolts maintain their strength even when subjected to pressure and temperatures up to 1300°F (700°C).
Mechanical & Physical Properties Of Inconel 718 Fasteners
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.2 g/cm3 | 1350 °C (2460 °F) | Psi – 135,000 , MPa –930 | Psi – 70,000 , MPa – 482 | 45 % |
Inconel 718 Fastener Chemical Composition
| Grade | Cr | Fe | Ni | C | Mn | Cu | Si | S |
| Inconel 718 | 17-21 | Bal | 50-55 | 0.08 max | 0.35 max | 0.3 max | 0.35 max | 0.015 max |
Physical Properties of Inconel 718 Alloy Fasteners
| Property | Value |
|---|---|
| Density | 8.19 g/cm³ (8190 kg/m³) |
| Poisson's Ratio | 0.30. |
| Young's Modulus | 210 GPa & 30,400 ksi |
| Hardness | 300-350 HV |
| Thermal Conductivity | 11.6 W/m·K |
| Specific Heat | 460 J/kg·K |
| Electrical Resistivity | 1.18 × 10⁻⁶ Ω·m at 20°C |
Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications. We also offer customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneesteel.com.
