Description
Nimonic 81
NIMONIC ®alloy 81 is a wrought nickel alloy hardened by controlled additions of titanium and aluminum, and designed to provide enhanced resistance to high temperature corrosion coupled with good high temperature strength. It has excellent hot corrosion resistance due to its high chromium content. Elevated temperature strength characteristics are similar to those of NIMONIC alloy 80A. Melting, hot-working, cold working and machining practices are also broadly similar to those for NIMONIC alloy 80A.
%Chemical Composition
| Cr | Mn | Fe | Cu | Si | C | Ni |
| 30 | 0.5 | 1 | 0.2 | 0.5 | 0.05 | Balance |
| S | Zr | B | Mo | Co | Al | Ti |
| 0.015 | 0.06 | 0.003 | 0.3 | 2 | 0.9 | 1.8 |
Density & Melting Range
| Melting Range (Celsius) | Density |
| 1375 – 1305 | (g/cm) 8.06 |
Mechanical Properties
| % Elongation | Yield Strength (MPa) | Tensile Strength (MPa) |
| 40 | 600 | 1050 |
DM unit
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