MHC is a particle-strengthened Mo-based alloy with an excellent high-temperature strength. The addition of Hf and C leads to the formation of fine-distributed Hf-carbides, which are very stable leading to high particle hardening - even in the high-temperature area (up to 1550°C). The average nominal chemical composition in weight%: 1.2 Hf, 0.1 C, remainder Mo.
Advantages compared to pure Mo:
- higher high-temperature strength
- higher recrystallization temperature
- better creep resistance
Advantages compared to TZM:
- higher high-temperature strength and therefore higher application temperatures of 100-150 °C
Typical areas of application:
- extrusion dies
- billets for the isothermal forging
