ISO | Material | Material Designation | Material Condition | Hardness | Cutting Speed Recommendations (Vc) |
S | 33 | High temp. alloys Ni or Co based | Annealed | 250 HB | 215-345 sfm |
S | 34 | High temp. alloys. Ni or Co based | Hardened | 350 HB | 165-295 sfm |
S | 35 | High temp. alloys. Ni or Co based | Cast | 320 HB | 130-280 sfm |
S | 37 | Titanium alloys | Alpha+beta alloys, hardened | 310 HB | 130-260 sfm |