ISO | Material | Material Designation | Material Condition | Hardness | Cutting Speed Recommendations (Vc) |
K | 15 | Grey cast iron (GG) | Pearlitic/ferritic | 180 HB | 1310-1640 sfm |
K | 16 | Grey cast iron (GG) | Pearlitic/martensitic | 260 HB | 1310-1640 sfm |
K | 17 | Nodular cast iron (GGG) | Ferritic | 160 HB | 1640-3935 sfm |
K | 18 | Nodular cast iron (GGG) | Pearlitic | 250 HB | 1310-3280 sfm |
S | 34 | High temp. alloys. Ni or Co based | Hardened | 350 HB | 330-655 sfm |
H | 38 | Hardened steel | Hardened | 55 HRC | 260-460 sfm |
H | 39 | Hardened steel | Hardened | 60 HRC | 195-395 sfm |
H | 40 | Chilled cast iron | Cast | 400 HB | 230-490 sfm |
H | 41 | Cast iron | Hardened | 55 HRC | 330-460 sfm |