Inconel 718 Rivets (UNS N07718, WNR 2.4668)
Inconel 718 Rivets are permanent mechanical fasteners essential for assemblies requiring exceptional structural integrity and stability at high temperatures. These rivets are produced from the age-hardenable Nickel Alloy 718 (UNS N07718), a material known for retaining its high yield and tensile strength up to $700∘C ($1300^\circ\text{F}$), far exceeding conventional rivet materials. The high nickel and chromium content, along with additions of niobium, ensures these Alloy 718 rivets possess superior resistance to oxidation and stress-corrosion cracking in harsh operating environments. Due to their reliability and robust strength-to-weight ratio, they are widely used in the aerospace industry for jet engine structures, rocket components, and gas turbine assemblies. Zeron Fasteners is a trusted supplier, providing precision-formed high-temperature rivets suitable for automated installation and critical structural joining.
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Inconel 718 Rivets Chemical Composition
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | $50.0 - 55.0$ |
| Chromium (Cr) | $17.0 - 21.0$ |
| Iron (Fe) | Balance |
| Niobium (Nb) | $4.75 - 5.50$ |
| Molybdenum (Mo) | $2.80 - 3.30$ |
| Titanium (Ti) | $0.65 - 1.15$ |
| Aluminum (Al) | $0.20 - 0.80$ |
| Cobalt (Co) | ≤ 1.0$ |
| Carbon (C) | ≤ 0.08$ |
| Manganese (Mn) | ≤ 0.35$ |
Inconel 718 Rivets Mechanical Properties
| Property | Minimum Value (Age-Hardened) |
|---|---|
| Shear Strength | $795 MPa / 115 KSI |
| Tensile Strength | $1240 MPa / 180 KSI (Ref Bar Stock) |
| Hardness (Rockwell C) | $38 min |
| Ductility | Adequate for setting/bucking |
| Temperature Range | Cryogenic to $704^\circ \text{C}$ |