| ISO | Material | Material Designation | Material Condition | Hardness | Cutting Speed Recommendations (Vc) |
| P | 1 | Non-alloy steel and cast steel, free cutting steel <0.25%C. | Annealed | 125 HB | 250-400 m/min |
| P | 2 | Non-alloy steel and cast steel, free cutting steel >=0.25%C. | Annealed | 190 HB | 220-350 m/min |
| P | 3 | Non-alloy steel and cast steel, free cutting steel <0.55% C | Quenched and tempered | 250 HB | 180-320 m/min |
| P | 4 | Non-alloy steel and cast steel, free cutting steel >=0.55% C | Annealed | 220 HB | 210-340 m/min |
| P | 5 | Non-alloy steel and cast steel, free cutting steel >=0.55% C | Quenched and tempered. | 300 HB | 160-300 m/min |
| P | 6 | Low alloy and cast steel (less than 5% of alloying elements) | Annealed | 200 HB | 180-320 m/min |
| P | 7 | Low alloy and cast steel (less than 5% of alloying elements) | Quenched and tempered | 275 HB | 170-300 m/min |
| P | 8 | Low alloy and cast steel (less than 5% of alloying elements) | Quenched and tempered | 300 HB | 160-250 m/min |
| P | 9 | Low alloy and cast steel (less than 5% of alloying elements) | Quenched and tempered | 350 HB | 150-220 m/min |
| P | 10 | High alloyed steel, cast steel and tool steel | Annealed | 200 HB | 180-300 m/min |
| P | 11 | High alloyed steel, cast steel and tool steel | Quenched and tempered | 325 HB | 150-220 m/min |
| N | 21 | Aluminum-wrought alloys | Not hardenable | 60 HB | 1000-2500 m/min |
| N | 22 | Aluminum-wrought alloys | Hardenable | 100 HB | 300-1000 m/min |
| N | 23 | Aluminum-cast alloys <=12% Si | Not hardenable | 75 HB | 300-1000 m/min |
| N | 24 | Aluminum-cast alloys <=12% Si | Hardenable | 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 | Hardened | 350 HB | 15-25 m/min |
| S | 35 | High temp. alloys. Ni or Co based | Cast | 320 HB | 20-30 m/min |
| S | 36 | Titanium (pure) | Pure | 190 HB | 80-160 m/min |
| S | 37 | Titanium alloys | Alpha+beta alloys, hardened | 310 HB | 40-50 m/min |