| 摘要 |
A steel for hot working press tool consisting essentially of C: 0.05-0.35 wt%, Si: 0.80-2.5 wt%, Mn: 0.10-2.0 wt%, Cr: 7.0-13.0 wt%, Mo: 0.50-3.0 wt%, V: 0.10-0.60 wt%, N: 0.005-0.10 wt%, the balance being iron and inevitable impurities, and optionally containing Al: 0.005-0.5 wt% and/or REM: 0.005-0.02 wt%, with the proviso that Cr equivalent = Cr + 6Si + 4Mo + 11V + 12A l - 40C - 2Mn - 30N(wt%) </= 16. |
