We don't have synonyms for high speed steel yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are high-speed steel and high speed steels.
We don't have any synonyms for high speed steel yet.
(n) :
(metallurgy) A kind of tool steel, invented in the early 20th century, which retains its hardness and temper at high temperatures (at which previous kinds of tool steel would soften), thus allowing cutters made from it to be employed at higher cutting speeds than were previously practical.
(n) :
(metallurgy) A kind of tool steel, invented in the early 20th century, which retains its hardness and temper at high temperatures (at which previous kinds of tool steel would soften), thus allowing cutters made from it to be employed at higher cutting speeds than were previously practical.