1.Ranking of Properties

2.Hardenability

3.Hot Hardness
Hot hardness and red hardness of high speed steel at 650°C

4.Grindability

| Machine Used | NIPPEI Cylindrical Grinder |
| Grindstone | WA603J7V10W Ø610 x 65 x Ø304.8 |
| Peripheral Speed (grindstone) | 1820m/min |
| Grinding depth (aim in-feed) | 30µ/pass |
| Specimen | 50Ø x 260 |
| Peripheral Speed (materials) | 9m/min |
| Traversing feed | 500m/min |
| Coolant | Simillon |
| Dressing | 110mm/min |
| In-feed of dressing | 30µ/pass x 2pass |