
slow Tapping speed fast
| 5m/min | 10m/min | 15m/min | 20m/min | 30m/min | ||
| Workpiece | Workpiece |
| Materials | Area of full rigid lead feed | Materials | ||
| UH-CT | ||||
| 60HRC | ⑤-27 | 60HRC | ||
| 55HRC | 55HRC | |||
| EH-CT | ||||
| 45HRC | >>> ⑤-23 | 45HRC | ||
| 45HRC | EH-HT | 45HRC | ||
| >>> ④-119 | ||||
| 35HRC | 35HRC | |||
| HC+SP | ||||
| SKS | >>> ①-129 | SKS | ||
| Tool steels | SKD | HC-SP | Tool steels SKD | |
| >>> ①-129 | ||||
| SCM | SCM | |||
| Alloy steels | SCr | Alloy steels SCr |
SP +SP >>> ①-35 >>> ①-55 S45C S45C
>>> ④-3
S45C S45C S30C S30C
>>> ④-49 >>> ①-127
>>> ①-59 S25C S25C SS400 SS400
| FCD | FC-HT | N-CT FC | FCD | ||
| Ductile cast irons | >>> ④-91 | >>> ⑤-10 | Ductile cast irons | ||
| FC | FC | ||||
| Cast irons | Cast irons |
5m/min 10m/min 15m/min 20m/min 30m/min