| ISO | Material | Material Designation | Material Condition | Hardness | Cutting Speed Recommendations (Vc) |
| N | 21 | Aluminum-wrought alloys | Not cureable | 60 HB | 1000-2500 m/min |
| N | 22 | Aluminum-wrought alloys | Cured | 100 HB | 300-1000 m/min |
| N | 23 | Aluminum-cast alloys <12% Si | Not cureable | 75 HB | 300-1000 m/min |
| N | 24 | Aluminum-cast alloys | Cured | 90 HB | 200-600 m/min |
| N | 26 | Copper alloys >1% Pb | Free cutting | 110 HB | 250-600 m/min |
| N | 27 | Copper alloys | Brass | 90 HB | 180-400 m/min |
| N | 28 | Copper alloys | Electrolytic copper | 100 HB | 150-300 m/min |
| S | 31 | High temp. alloys Fe based | Annealed | 200 HB | 35-45 m/min |
| S | 32 | High temp. alloys Fe based | Hardened | 280 HB | 25-35 m/min |
| S | 33 | High temp. alloys Ni or Co based | Annealed | 250 HB | 25-30 m/min |
| S | 34 | High temp. alloys. Ni or Co based | Cured | 350 HB | 20-30 m/min |
| S | 35 | High temp. alloys. Ni or Co based | Cast | 320 HB | 25-35 m/min |
| S | 36 | Titanium (pure) | Pure | 110 HB | 120-160 m/min |
| S | 37 | Titanium alloys | Alpha+beta alloys | 310 HB | 50-60 m/min |