Anti-abrasive and anti-corrosive alloy

Abstract

An anti-abrasive and anti-corrosive alloy capable of being finished by cutting process in a condition where it has been built on the surface of a base metal. The anti-abrasive and anti-corrosive alloy contains, as main component, Co, Cr, Mo and Ni mixed at the following weight ratio: Cr: 16 wt. %-18 wt. % Mo: 28 wt. %-32 wt. % Co+Ni: 46 wt. %-48.5 wt. %

What is claimed is:  
     
         1 . An anti-abrasive and anti-corrosive alloy containing, as main components, Co, Cr, Mo and Ni mixed at the following weight ratio: 
 Cr 16 wt. %-18 wt. %    Mo: 28 wt. %-32 wt. %    Co+Ni: 46 wt. %-48.5 wt. %    
     
     
         2 . An anti-abrasive and anti-corrosive alloy as claimed in  claim 1 , wherein the component ratio of Co and Ni is determined in such a manner that Co is more than or equal to 8 wt. % and less than or equal to 18 wt. % and that Ni is more than or equal to 30 wt. % and less than or equal to 40 wt. %.  
     
     
         3 . An anti-abrasive and anti-corrosive alloy as claimed in  claim 1 , wherein the component ratio of Co and Ni is determined in such a manner that Co is more than or equal to 23 wt. % and less than or equal to 25 wt. % and that Ni is more than or equal to 23 wt. % and less than or equal to 25 wt. %.  
     
     
         4 . An anti-abrasive and anti-corrosive alloy as claimed in  claim 1 , wherein the component ratio of Co and Ni is determined in such a manner that Co is more than or equal to 34 wt. % and less than equal to 36 wt. % and that Ni is more than or equal to 12 wt. % and less than or equal to 14 wt. %  
     
     
         5 . An anti-abrasive and anti-corrosive alloy as claimed in  claim 1 , wherein an average value of Vicker s hardness of the alloy is in an extent of 540-680 Hv.