| ISO | Workpiece Material Group | 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 | 80-110 m/min |
| P | 2 | Non-alloy steel and cast steel, free cutting steel >=0.25%C. | Annealed | 190 HB | 50-80 m/min |
| P | 4 | Non-alloy steel and cast steel, free cutting steel >=0.55%C. | Annealed | 220 HB | 50-90 m/min |
| P | 6 | Low alloy & cast steel (less than 5% of alloying elements). | Annealed | 200 HB | 40-70 m/min |
| P | 7 | Low alloy & cast steel (less than 5% of alloying elements). | Quenched & tempered | 275 HB | 40-60 m/min |
| P | 9 | Low alloy & cast steel (less than 5% of alloying elements). | Quenched & tempered | 350 HB | 30-50 m/min |
| P | 10 | High alloyed steel, cast steel and tool steel. | Annealed | 200 HB | 30-50 m/min |
| P | 11 | High alloyed steel, cast steel and tool steel. | Quenched & tempered | 325 HB | 30-40 m/min |
| M | 12 | Stainless steel and cast steel. | Ferritic/martensitic | 200 HB | 40-80 m/min |
| M | 14 | Stainless steel and cast steel. | Austenitic | 180 HB | 30-80 m/min |
| S | 31 | High temp. alloys Fe based. | Annealed | 200 HB | 15-25 m/min |
| S | 32 | High temp. alloys Fe based. | Cured | 280 HB | 10-15 m/min |
| S | 33 | High temp. alloys. Ni or Co based. | Annealed | 250 HB | 10-15 m/min |
| S | 34 | High temp. alloys. Ni or Co based. | Cured | 350 HB | 10-15 m/min |
| S | 35 | High temp. alloys. Ni or Co based. | Cast | 320 HB | 10-15 m/min |
| S | 36 | Titanium Ti alloys. | | 310 HB | 60-80 m/min |
| S | 37 | Titanium Ti alloys. | Alpha+beta alloys cu | 310 HB | 15-30 m/min |