NRX 601 is an austenitic nickel-chromium alloy (NiCr alloy) for furnace temperatures up to 1250°C (2280°F).
Typical applications for NRX 601 are conveyor belts in carburizing, nitriding or carbon nitriding atmospheres, baskets and trays for heat treatment process.
Chemical composition
| Cr % | Ni % | Al % | Fe % | minor additions of RE | |
|---|---|---|---|---|---|
| Nominal composition | 23 | 59 | 1.4 | Bal | present |
Mechanical properties
| Wire size | Yield strength | Tensile strength | Elongation |
|---|---|---|---|
| Ø | Rp0.2 | Rm | A |
| mm (in) | MPa (ksi) | MPa (ksi) | % |
| 1.0 (0.04) | 330 (48) | 700 (102) | 30 |
Physical properties
| Density g/cm3 (lb/in3) | 8.06 (0.291) |
|---|---|
| Electrical resistivity at 20°C Ω mm2/m (Ω circ. mil/ft) | 1.21 (728) |
| Temperature °C (°F) |
Thermal Expansion x 10-6/K (10-6 /°F) |
|---|---|
| 20 - 1000 (68-1832) | 17.8 (9.9) |
| Temperature °C (°F) | 100 (212) |
|---|---|
| W m-1 K-1 (Btu h-1ft-1°F-1) | 11.2 (6.5) |
| Temperature °C (°F) | 20 (68) |
|---|---|
| kJ kg-1 K-1 (Btu lb-1 °F-1) | 0.45 (0.11) |
| Melting point °C (°F) | 1350 (2462) |
|---|---|
| Max continuous operating temperature in air °C (°F) | 1250 (2282) |