High-speed steel (HSS) yog cov cuab yeej hlau uas muaj siab hardness, siab hnav tsis kam thiab kub kub tsis kam, tseem hu ua high-speed tool steel lossis pem hauv ntej steel, feem ntau hu ua dawb steel. High-speed steel yog tsim nyob rau hauv 1898 los ntawm FW Taylor thiab M. White nyob rau hauv lub tebchaws United States.
