BÖHLER W320 ISODISC is a 3% chromium steel and corresponds to material number 1.2365 (32CrMoV12-28). This tool steel has good hot toughness as well as a very high hot hardness and resistance against heat-checkings. Compared to an X37CrMoV5-1 (material number 1.2343), the steel has an increased molybdenum content, which significantly increases its thermal resistance and thus makes it the ideal material in die closed- and open-doe forging. Due to the lower chromium content, reduced through-hardenability occurs which limits its applications to rather smaller tools.
| High temperture strength | High temperature toughness | High_ temperature wear resistance |
|---|---|---|
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| SEL | UNS | EN | AISI | JIS |
|---|---|---|---|---|
| 1.2365 | ~T20810 | 32CrMoV12-28 | ~H10 | SKD7 |
| EN ISO | JIS |
|---|---|
| 4957 | G4404 |
| C | Si | Mn | Cr | Mo | V | |
|---|---|---|---|---|---|---|
| 0.31 | 0.30 | 0.35 | 2.90 | 2.70 | 0.50 |
