
| soft | hard | Tapping speed | ||
| ISO | ISO |
| Tapping | Ratio of threaded holes produced in steel world wide based on material type | Tapping | Identifi- | Vc | 5 | 10 | 15 | 20 | 30 | 50 | Identifi- | |
| method | speed | (m/min) | m/min | m/min | m/min | m/min | m/min | m/min | ||||
| Alloy steels | cation | cation |
Medium carbon igh carbon numbers Materials Area of full rigid lead feed Materials numbers
| Low carbon steels | steels | steels | ||
| igh | EH-HT |
| 1.2706 | >>> 145P | 1.2706 |
| P6 | P6 | |
| series (X3 NiCrMo 18 8 5) | (X3 NiCrMo 18 8 5) | |
| igh tensile strength steel | igh tensile strength steel | |
| PH-SP | ||
| >>> 75P | ||
| 1.2344 | 1.2344 |
| P5 | Tool steel | Tool steel | P5 | |||||
| (X 40 CrMoV 5 1) | (X 40 CrMoV 5 1) | |||||||
| series | ||||||||
| SP+VA | SU2-SPSU2SU2SU2 SPSPSPSPSPSP |
| >>> 78P | >>> >>>87P87P | HFIHS |
| SP-VA | >>> 94P |
>>> >>> P4 C 105 W2 >>> 79P HFISP C 105 W2 P4
SP-VA >>> 95P (Coating) >>> 82P
| t n | r | series | 1.7218 | >>> 89P | 1.7218 |
| (25 CrMo 4) | (25 CrMo 4) |
P3 LO-SP P3
| 1.7045 | >>> | HDISP | 1.7045 | |
| 70P | ||||
| (42Cr 4) | >>> 98P | (42Cr 4) | ||
| LO-SP OX | ||||
| >>> 72P | ||||
| SP | ||||
| >>> 52P | ||||
| 1.0503 | SP (LH) | 1.0503 | ||
| (C45) | >>> 64P | (C45) | ||
| P2 | SP-BLF | SP | P2 | |
| C30 | >>> 83P | (Coating) | C30 |
HT >>> 57P >>> 134P SP-BLF (Coating) SP OX >>> 85P
| C25 | >>> 86P | C25 | |||
| >>> >>>>>>>>>67P67P | |||||
| P1 | P1 | ||||
| St44-2 | St44-2 |
E-SP AU+SPAUAUAUAUAUAU SP F-SPSP
>>> >>>>>>>>>>>>65P65P65P65P >>> >>>93P93P >>> 77P
5m/min 10m/min 15m/min 20m/min 30m/min 50m/min