Non-alloy steel
Low alloy steel
High alloy & tool steel
Grey cast iron
Nodular cast iron
Malleable cast iron
Hardened steels & cast irons
Speeds & Feeds
| MATERIAL | P | K | ||||||||||||||
| NON-ALLOYED STEELS ALLOY STEELS | ALLOY STEELS HEAT RESISTANT STEELS | HARDENED STEELS | CAST IRON | |||||||||||||
| HARDNESS | ~HRc30 | HRc30~HRc40 | HRc45~HRc55 | |||||||||||||
| STRENGTH | ~1000N/mm2 | 1000 ~ 1250N/mm2 | 1500 ~ 2000N/mm2 | |||||||||||||
| DIAMETER | RPM | FEED | Vc | Fz | RPM | FEED | Vc | Fz | RPM | FEED | Vc | Fz | RPM | FEED | Vc | Fz |
| R0.5 × 1.0 | 17650 | 280 | 55 | 0.008 | 14250 | 225 | 45 | 0.008 | 6500 | 100 | 20 | 0.008 | 17490 | 280 | 55 | 0.008 |
| R0.75 × 1.5 | 17650 | 390 | 85 | 0.011 | 13600 | 300 | 65 | 0.011 | 5960 | 135 | 30 | 0.011 | 17490 | 390 | 80 | 0.011 |
| R1.0 × 2.0 | 16130 | 840 | 100 | 0.026 | 11980 | 550 | 75 | 0.023 | 5240 | 170 | 35 | 0.016 | 15980 | 835 | 100 | 0.026 |
| R1.25 × 2.5 | 16130 | 840 | 125 | 0.026 | 11980 | 550 | 95 | 0.023 | 5240 | 170 | 40 | 0.016 | 15980 | 835 | 125 | 0.026 |
| R1.5 × 3.0 | 14670 | 760 | 140 | 0.026 | 11200 | 515 | 105 | 0.023 | 5060 | 170 | 50 | 0.017 | 14540 | 755 | 135 | 0.026 |
| R2.0 × 4.0 | 11760 | 830 | 150 | 0.035 | 9410 | 595 | 120 | 0.032 | 4700 | 200 | 60 | 0.021 | 11660 | 820 | 145 | 0.035 |
| R2.5 × 5.0 | 10240 | 920 | 160 | 0.045 | 8180 | 650 | 130 | 0.040 | 4120 | 200 | 65 | 0.024 | 10150 | 910 | 160 | 0.045 |
| R3.0 × 6.0 | 9510 | 1140 | 180 | 0.060 | 7730 | 930 | 145 | 0.060 | 3560 | 215 | 65 | 0.030 | 9420 | 1130 | 180 | 0.060 |
| R4.0 × 8.0 | 8020 | 1445 | 200 | 0.090 | 6460 | 1030 | 160 | 0.080 | 2770 | 245 | 70 | 0.044 | 7950 | 1430 | 200 | 0.090 |
| R5.0 × 10.0 | 7130 | 1715 | 225 | 0.120 | 5700 | 1140 | 180 | 0.100 | 2280 | 250 | 70 | 0.055 | 7070 | 1700 | 220 | 0.120 |
| R6.0 × 12.0 | 6540 | 1960 | 245 | 0.150 | 5200 | 1245 | 195 | 0.120 | 1960 | 275 | 75 | 0.070 | 6480 | 1945 | 245 | 0.150 |
| R8.0 × 16.0 | 5340 | 1925 | 270 | 0.180 | 4230 | 1185 | 215 | 0.140 | 1510 | 275 | 75 | 0.091 | 5290 | 1910 | 265 | 0.181 |
| R10.0 × 20.0 | 4640 | 1860 | 290 | 0.200 | 3650 | 1165 | 230 | 0.160 | 1240 | 280 | 80 | 0.113 | 4600 | 1845 | 290 | 0.201 |
| RPM: | – | rev/min |
| FEED: | – | mm/min |
| Vc: | – | m/min |
| Fz: | – | mm/tooth |