STAINLESS STEEL AND CUTTING TOOL BODY MADE OF STAINLESS STEEL Russian patent published in 2018 - IPC C22C38/46 

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of metallurgy, specifically to stainless steel, intended for use in cutting tool bodies. Steel contains, in wt%: C 0.14–0.25, N 0.06–0.15, Si 0.7–1.2, Mn 0.3–1.0, Cr 12–15, Ni 0.3–0.8, Mo 0.05–0.4, V 0.05–0.4, Al 0.001–0.3, optionally Ρ≤0.05, S≤0.5, Cu≤3.0, Co≤5.0, W≤0.5, Nb≤0.1, Ti≤0.1, Zr≤0.1, Ta≤0.1, B≤0.01, Be≤0.2, Se≤0.3, Ca 0.0003–0.009, O 0.003–0.01, Mg≤0.01 and rare earth metals ≤0.2, the balance is Fe and impurities.

EFFECT: steel has high mechanical properties and high machinability.

13 cl, 7 tbl, 2 ex