Inconel 706 / Alloy 706
N09706Precipitation-hardenable nickel-iron-chromium alloy (Ni-40Fe-16Cr-3Nb-1.7Ti). Similar properties to Inconel 718 but significantly better machinability and fabricability due to delayed hardening response. Solution-annealed: Rm ~757 MPa, Rp0.2 ~383 MPa. Precipitation-hardened: Rm ~1334 MPa, Rp0.2 ~1112 MPa, A ~24%. Excellent resistance to postweld strain-age cracking. Max service temperature ~705°C. Applications: gas turbine discs, compressor blades, turbine shafts, fasteners, ring forgings for power generation and aerospace.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | UNS | USA | N09706 | — | % |
| 🇺🇸 | AMS | USA | AMS 5701/5702/5703 | — | % |
| 🇺🇸 | Special Metals | USA | Inconel 706 | — | % |
Sources: SAE/ASTM, SAE AMS, specialmetals.com
Mechanical properties — Pro
Solution-Annealed
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ||
| Yield Strength | ||
| Elongation | ||
| Density | ||
| max_use_temperature |
Precipitation-Hardened
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ||
| Yield Strength | ||
| Elongation |
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