| 摘要 |
<p>The invention relates to a precipitation hardening tool steel for mould tools. The steel contains, expressed in weight-%: 0.01 - 0.1 C, from traces to max 2 Si, 0.3 - 3.0 Mn, 1 - 5 Cr, 0.1 - 1 Mo, and Ni as a toughness and hardenability improving element, and Ni and Al as a compound and/or Cu for precipitation hardening purposes, wherein the contents of Ni and Al and/or Cu amount to 1 - 7 Ni, 1.0 - 3.0 Al and/or 1.0 - 4.0 Cu, wherein 1.5 x Al + Cu » 2.0, balance essentially only iron, impurities and accessory elements in normal amounts. The invention also relates to a mould tool made from the steel according to the invention.</p> |
