Monel K-500 Custom Springs
Monel K-500 is quite similar to Monel 400 and also is composed of about two-thirds nickel and one-third copper except that the addition of small amounts of aluminum and titanium transposes it to the precipitation-hardening group of alloys. It is often used in sizes larger than is customarily used for Monel 400, as it may be formed in the soft or nearby hard condition and then heat treated. It is nonmagnetic.
| Technical Specification | Monel K-500 |
|---|---|
| Nominal Composition |
Ni: 63.0 Al: 2.30 - 3.15 Cu: 27.0 - 33.0 |
| Density |
0.305 lb./in3 |
| Modulus of Elasticity (E) |
26 x 106 psi |
| Modulus of Rigidity (G) |
9.5 x 106 psi |
| Coefficient of Expansion |
7.6 µin/in.-°F (70°F) |
| Electrical Resistivity |
370 µΩ.cm |
| Thermal Conductivity |
121 Btu/(hr/ft2/in/°F) |
| Min Size |
0.018 in (0.457 mm) |
| Max Temp |
260oC (500oF) |
| Uses of Monel K-500 Springs |
The combination of very low corrosion rates in high-velocity sea water and high strength make alloy K-500 particularly suitable for shafts in marine service |
