Udimet 710 (AFNOR NCK18TDA) is a precipitation-hardenable nickel-chromium-cobalt superalloy in the Special Metals Udimet family, developed for the hottest sections of gas turbine engines, including investment-cast components. It is strengthened by gamma-prime (γ') formed from a relatively high combined titanium and aluminum content, with chromium providing oxidation resistance and cobalt and molybdenum contributing further high-temperature strength. Udimet 710 is characterized by an outstanding combination of creep-rupture strength, thermal-fatigue resistance, and good oxidation resistance at temperatures up to approximately 980°C (1800°F).

Like other Udimet-family grades, Udimet 710 sees service in gas turbine hot-section hardware that must sustain both high stress and high temperature simultaneously. It is a moderately documented trade name; published data on its exact microalloying content (B, Zr, W) is more limited than for the higher-volume Udimet 500 and 700 grades, so mill certification should always be consulted to confirm exact composition for a specific lot.

Udimet 710 carries the same fundamental difficulties found across the nickel-based superalloy family. Thermal conductivity is low, so heat generated at the cutting edge concentrates at the tool-chip interface rather than dissipating into the chip, accelerating crater wear and edge deformation. The alloy work-hardens rapidly under the mechanical and thermal stress of cutting, so any hesitation, rubbing, or interrupted engagement at the cutting edge creates a hardened surface layer that is far tougher to cut than the base material - maintaining a constant, adequate chip load is essential.

Udimet 710's relatively high titanium content (5%) combined with aluminum drives a substantial gamma-prime fraction, and the alloy is engineered specifically to retain strength and creep resistance at temperatures approaching 980°C, so tool edges stay under heavy mechanical load even as cutting-zone temperatures climb. This drives notching and edge chipping if speeds are pushed too aggressively, and the alloy's chemical affinity for common tool materials makes it prone to galling and built-up edge. Rigid setups, sharp and properly honed positive-rake carbide grades suited to superalloys, moderate-to-low cutting speeds, and consistent, generous coolant delivery are the standard countermeasures for this alloy family.