| 摘要 |
<p>An alloy steel is provided containing, by weight percent, carbon 0.5-1.1, manganese 0.10-<0.50, silicon 0.10<0.80, chromium 3.5-5.0, molybdenum 2.5-5.0, vanadium 0.5-2.0, cobalt 0.5-4.0, columbium 0.15-0.50, up to 0.10 aluminum and the balance iron except for incidental impurities. The alloy can be balanced to provide a minimum room temperature hardness of Rc 60 with outstanding toughness and ductility or to provide a minimum room temperature hardness of Rc 63 with good wear resistance.</p> |
