| ISO | Material | Material Designation | Material Condition | Hardness | Cutting Speed Recommendations (Vc) |
| S | 31 | High temp. alloys Fe based | Annealed | 200 HB | 30-40 m/min |
| S | 32 | High temp. alloys Fe based | Hardened | 280 HB | 20-30 m/min |
| S | 33 | High temp. alloys Ni or Co based | Annealed | 250 HB | 20-25 m/min |
| S | 34 | High temp. alloys. Ni or Co based | Hardened | 350 HB | 10-20 m/min |
| S | 35 | High temp. alloys. Ni or Co based | Cast | 320 HB | 15-25 m/min |
| S | 36 | Titanium (pure) | Pure | 190 HB | 80-130 m/min |
| S | 37 | Titanium alloys | Alpha+beta alloys, hardened | 310 HB | 30-50 m/min |