Ferralium® 255-SD50 super duplex machines predictably once the right feed-and-speed settings are used, and we publish machining guidelines in every product datasheet. For one project a customer wanted the best available tooling guidance, so we worked with Sandvik Coromant to specify it.
For Ferralium® 255-SD50, the Coromant engineer recommended the CoroTurn Prime system, using a CoroTurn Prime Type B insert (CP-25BL-2525-11, geometry H3, ISO S). The recommended turning settings were:
- VC = 100 m/min
- FZ = 1.00 mm/rpm
- AP = 1.5 mm
- Tool life = 15 min
- Observations: no chip breakage
The project was completed successfully. We supply Ferralium® 255-SD50 and the wider super duplex range as bar, cut and certified to specification.
Acknowledgement: Nuno Batista, Sales Engineer, Alleima Coromant Iberica.
| Cutting parameter | Value |
|---|---|
| Cutting speed (Vc) | 100 m/min |
| Feed (Fz) | 1.00 mm/rpm |
| Depth of cut (Ap) | 1.5 mm |
| Tool life | 15 min |