Material K12


General Information for Material K12

Material Group H - Hardened Steel
Hardness 51.0 HBW
Tensile Strength 1590-1930 [N/mm^2]
Machinability Range 0% - 0%

Equivalent International Designations for Material K12

Standard Name

Chemical Composition for Material K12

Sorry, Not Availble for this Material



Cutting Speeds Recomendations for Hardened steel

Application Vc (m/min) Vc (SFM)

Important! The speed estimation is given for an ideal situation:
  • Most suitable carbide grade
  • Stable tool clamping
  • Stable workpiece clamping
  • Good quality raw material
  • A short overhang of the cutting tool.
  • Nominal hardness of the material.
  • etc.

Grade for Turning

Grade Coating Apps Range 05 10 15 20 25 30 35 40 45
No data available in table

Grade for Parting Off

Grade Coating Apps Range 05 10 15 20 25 30 35 40 45
No data available in table


Grade for Grooving

Grade Coating Apps Range 05 10 15 20 25 30 35 40 45
No data available in table

Grade for Milling (Indexable)

Grade Coating Apps Range 05 10 15 20 25 30 35 40 45
No data available in table


Recommended Insert Cutting Edge Geometry for Material K12