D2 Sheets / 1.2379 Sheets
1.2379 Round Bars / D2 Round Bars is a High Carbon High Chromium Tool Steel, heat treatable to 60-62 HRC
1.2379 / D2 Chemical Composition of X153CrMoV12 :
| Element | Min. | Max. |
| C | 1.45 | 1.60 |
| Si | 0.10 | 0.60 |
| Mn | 0.20 | 0.60 |
| P | - | 0.030 |
| S | - | 0.030 |
| Cr | 11.00 | 13.00 |
| Mo | 0.70 | 1.00 |
| V | 0.70 | 1.00 |
Equivalent grades of D2 / X153CrMoV12 / 1.2379 :
| EU | EN | X153CrMoV12 |
| Germany | DIN,WNr | X155CrVMo12-1 |
| Japan | JIS | SKD11 / SKD10 |
| UNS | T30402 | |
| AISI | D2 | |
| France | AFNOR | Z160CDV12 |
| India | IS | XT160Cr12 |