High strength alloy

Abstract

A high strength alloy comprises: silicon with a weight percentage of 0.1 wt %˜0.5 wt %; manganese with a weight percentage of 0.3 wt %˜1.2 wt %; carbon with a weight percentage of 2.0 wt %˜3.0 wt %; phosphorous and sulfur with weight percentages of 0.01 wt %˜0.05 wt %, respectively; chromium with a weight percentage of 5.0 wt %˜7.0 wt %; molybdenum with a weight percentage of 3.0 wt %˜4.0 wt %; tungsten with a weight percentage of 1.0˜2.0; niobium with a weight percentage of 0.5 wt %˜1.7 wt %; vanadium with a weight percentage of 5.8 wt %˜7.8 wt %; nitrogen with a weight percentage of 0.04 wt %˜0.12 wt %; iron; other elements and impurities with a weight percentage of below 2 wt %

1 . A high strength alloy, comprising:
 silicon (Si) with a weight percentage of 0.1 wt %˜0.5 wt %; manganese (Mn) with a weight percentage of 0.3 wt %˜1.2 wt %; carbon (C) with a weight percentage of 2.0 wt %˜3.0 wt %; phosphorous (P) with a. weight percentage of 0.01 wt %˜0.05 wt %; sulfur (S) with a weight percentage of 0.01 wt %˜0.05 wt %; chromium (Cr) with a weight percentage of 5.0 wt %˜7.0 wt %; molybdenum (Mo) with a weight percentage of 3.0 wt %˜4.0 wt %; tungsten (W) with a weight percentage of 1.0˜2.0; niobium (Nb) with a weight percentage of 0.5 wt %˜1.7 wt %; vanadium (V) with a weight percentage of 5.8 wt %˜7.8 wt %; nitrogen (N) with a weight percentage of 0.04 wt %˜0.12 wt %; iron; other elements and impurities with a weight percentage of below 2%   
   
   
       2 . The high strength alloy as claimed in  claim 1 , wherein the containment of silicon is 0.3 wt %; the containment of manganese is 0.75 wt %, the containment of carbon is 2.44 wt %; the containment of phosphorous is 0.03 wt %; the containment of sulfur is 0.03 wt %; the containment of chromium is 6.0 wt %; the containment of molybdenum is 3.4 wt %; the containment of tungsten is 1.6 wt %; the containment of niobium is 1.1 wt %; the containment of vanadium is 6.8 wt %; the containment of nitrogen is 0.08 wt %; the containment of other metals and impurities are below 1 wt %. 
   
   
       3 . The high strength alloy as claimed in  claim 2 , wherein oxygen containment in the other components and impurities is below 0.009 wt %.