Speed & Feed Charts
HIGH TEMP. ALLOYS
| Nickel Based |
|---|
| Rc | SFM |
|---|
| 12-22 | 120 |
| 22-32 | 90 |
| 32-42 | 60 |
| Cobalt Base | -40% |
| Iron Base | +20% |
- Consult Sterling Gun Drills to verify application requirements.
- High SFM will cause vibration and/or harmonics with long gun drills. Reduce RPM or ensure adequate supports are in place or use an intermediate length gun drill.
- Minimum oil/coolant pressure is 35% of the PSI values on page 2. If at minimum, reduce SFM by 35%.
- Applications suitable for our Spraymist System, reduce SFM by 35% at same feed rate listed.
- Water soluble coolant must be oil based, high "EP" at 10-12% concentration, NO SYNTHETICS!