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Special Metals NIMONIC® Alloy 81
| Category | Metal , Nonferrous Metal , Nickel Alloy , Superalloy |
| Manufacturer | Special Metals (includes the former Inco Alloys International Inc.) |
| Trade Name | NIMONIC® |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Special Metals NIMONIC® Alloy 81.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
A precipitation-hardenable nickel-chromium alloy with enhanced resistance to high-temperature corrosion. The excellent hot-corrosion resistance of the alloy results from its high chromium content of 30%. The alloy also has good tensile and rupture strength and creep resistance at elevated temperatures. Used for gas turbines, piston-engine exhaust valves, and furnace equipment subject to attack by deposits resulting from combustion of impure fuels, particularly those containing alkali metal sulfates and chlorides. The standard product form is round.Data provided by the manufacturer, Special Metals.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 8.06 g/cc | 0.291 lb/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Tensile Strength, Ultimate | 830 MPa @Temperature 650 °C |
120000 psi @Temperature 1200 °F |
Precipitation Hardened prior to test |
| 1050 MPa @Temperature 23.0 °C |
152000 psi @Temperature 73.4 °F |
||
| Tensile Strength, Yield | 600 MPa @Strain 0.200 % |
87000 psi @Strain 0.200 % |
Precipitation Hardened. Value at room temperature |
| 520 MPa @Strain 0.200 %, Temperature 650 °C |
75400 psi @Strain 0.200 %, Temperature 1200 °F |
Precipitation Hardened prior to test | |
| Elongation at Break | 40 % | 40 % | Precipitation Hardened |
| 30 % @Temperature 650 °C |
30 % @Temperature 1200 °F |
Precipitation Hardened prior to test. |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 11.1 µm/m-°C @Temperature 20.0 - 100 °C |
6.17 µin/in-°F @Temperature 68.0 - 212 °F |
|
| Specific Heat Capacity | 0.461 J/g-°C | 0.110 BTU/lb-°F | |
| Thermal Conductivity | 10.9 W/m-K | 75.6 BTU-in/hr-ft²-°F | |
| Melting Point | 1305 - 1375 °C | 2381 - 2507 °F | |
| Solidus | 1305 °C | 2381 °F | |
| Liquidus | 1375 °C | 2507 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Aluminum, Al | 0.90 % | 0.90 % | |
| Boron, B | 0.0030 % | 0.0030 % | |
| Carbon, C | <= 0.050 % | <= 0.050 % | |
| Chromium, Cr | <= 30 % | <= 30 % | |
| Cobalt, Co | <= 2.0 % | <= 2.0 % | |
| Copper, Cu | <= 0.20 % | <= 0.20 % | |
| Iron, Fe | <= 1.0 % | <= 1.0 % | |
| Manganese, Mn | <= 0.50 % | <= 0.50 % | |
| Molybdenum, Mo | <= 0.30 % | <= 0.30 % | |
| Nickel, Ni | 63 % | 63 % | As remainder |
| Silicon, Si | <= 0.50 % | <= 0.50 % | |
| Sulfur, S | <= 0.015 % | <= 0.015 % | |
| Titanium, Ti | 1.8 % | 1.8 % | |
| Zirconium, Zr | 0.060 % | 0.060 % |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Electrical Resistivity | 0.000127 ohm-cm | 0.000127 ohm-cm | |
| Magnetic Permeability | 1.0004 | 1.0004 | at 200 oersted (15.9 kA/m) |
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