| 摘要 |
<p>A carburizing alloy steel is provided to improve strength and erosion-resistant characteristics of the carburizing alloy steel under the high temperature condition while reducing the content of nickel. A carburizing alloy steel comprises 0.2 to 04 weight percent of carbon, 2.0 or less weight percent of silicon, 2.0 or less weight percent of manganese, 0.04 or less weight percent of phosphorus, 0.04 or less weight percent of sulfur, 23 to 29 weight percent of chrome, 5 to 8 weight percent of nickel, 0.1 to 5.0 weight percent of niobium, remainder of Fe, and inevitable impurities. The carburizing alloy steel has creep rupture strength of 50N/mm2 or above. The carburizing alloy steel further comprises 0.05 to 0.1 weight percent of Rem.</p> |
