hardenability
/ˌhɑːd(ə)nəˈbɪlɪti/ /ˌhɑːdnəˈbɪlɪti/Metallurgy
noun
The extent or degree to which a metal may be hardened or will undergo hardening; capacity for becoming hardened; specifically the propensity of steel to transform into martensite when cooled rapidly from an austenitic state.
Origin
Late 19th century. From hardenable + -ity: see -bility.