M-50 is a premium-melted alloy featuring great resistance to multi-axial stresses and softening at high service temperature.

In addition, the alloy is known for excellent resistance to oxidation.

M-50 possesses high compressive strength and is typically used for components requiring high wear resistance and strength at elevated temperatures.

M-50 is used in various bearing and missile industry applications such as for bearings in aircraft and gas turbine engines in operating environments up to approximately 700°F (371°C).

AMS Spec Application
AMS 6490 AMS 6490 is a premium-melted alloy generally used in tooling applications which require high levels of performance.
AMS 6491 AMS 6491 is an intermediate high speed, molybdenum type tool steel that features high wear resistance and strength at high temperatures.