| 摘要 |
<p>The invention relates to a tool steel, whereby the composition thereof comprises the following expressed in wt. %: 0.8 ≤ C ≤ 1.5; 5.0 ≤ Cr ≤ 14; 0.2 ≤ Mn ≤ 3; Ni ≤ 5; V ≤ 1; Nb ≤ 0.1; Si+Al ≤ 2; Cu ≤ 1; S ≤ 0.3; Ca ≤ 0.1; Se ≤ 0.1; Te ≤ 0.1; 1.0 ≤ Mo+W/2 ≤ 4; 0.06 ≤ Ti+Zr/2 ≤ 0.15; 0.004 ≤ N ≤ 0.02. The rest of the composition is comprised of iron and impurities resulting from the production process, including 2.5.10-4 %2 ≤ (Ti + Zr/2) x N. The invention also relates to a method for producing parts made of said steel and parts thus obtained.</p> |
