| 摘要 |
<p>A cobalt-free maraging steel is disclosed which is of novel composition and has a desirable combination of strength and toughness. The novel steel contains 16.5 to 21% nickel, 0.5 to 4% molybdenum, 1.25 to 2.5% titanium, up to 1% aluminum, up to 0.05% carbon, the balance being essentially iron. The molybdenum and titanium content is correlated such that when the molybdenum content is below 1.5%, the titanium content is at least 1.8%, and, when the titanium content is below 1.4%, the molybdenum content is at least 2.25%.</p> |
