| ISO | Workpiece Material Group | Material Designation | Material Condition | Hardness | Cutting Speed Recommendations (Vc) |
| M | 12 | Stainless steel and cast steel. | Ferritic/martensitic | 200 HB | 130-240 m/min |
| M | 13 | Stainless steel and cast steel. | Martensitic | 240 HB | 120-240 m/min |
| M | 14 | Stainless steel and cast steel. | Austenitic | 180 HB | 100-200 m/min |
| S | 31 | High temp. alloys Fe based. | Annealed | 200 HB | 40-70 m/min |
| S | 32 | High temp. alloys Fe based. | Cured | 280 HB | 40-65 m/min |
| S | 33 | High temp. alloys. Ni or Co based. | Annealed | 250 HB | 30-70 m/min |
| S | 34 | High temp. alloys. Ni or Co based. | Cured | 350 HB | 30-55 m/min |
| S | 35 | High temp. alloys. Ni or Co based. | Castr | 320 HB | 35-70 m/min |
| S | 36 | Titanium Ti alloys. | | 310 HB | 70-120 m/min |
| S | 37 | Titanium Ti alloys. | Alpha+beta alloys cu | 310 HB | 40-75 m/min |