Oțeluri de mare viteză, Categoria R18
High-speed tool steel.
Application: All types of cutting tools used to process carbon alloy structural steels.
Chemical composition:Cr 3,6% — 4,4% Ni <0.4% W 17% — 19%
Steel grade:Р18, Р18Ф2 (ЭИ916), Р18Ф2М; ЭИ917; B37