
| P UNALLOYED STEELS .............................................................................................................................. D2 - D7 |
| ALLOYED STEELS ................................................................................................................................. D8 - D11 |
| M STAINLESS STEELS ............................................................................................................................ D12 - D15 |
| PH STAINLESS ..................................................................................................................................... D16 - D17 |
| K CAST IRONS ......................................................................................................................................... D18 - D19 |
| N ALUMINUM & ALLOYS ......................................................................................................................... D20 - D23 |
| S HIGH TEMPERATURE ALLOYS ........................................................................................................... D22 - D33 |
| H HARD MATERIALS (42-45 HRC) .......................................................................................................... D34 - D35 |
CUTTING TOOLS H HARD MATERIALS (42-45 HRC) .......................................................................................................... D34 - D35