A 
wear resistant, high-
impact iron 
alloy member (20,22) suitable for use in an 
impact rock 
crusher and a method of making the same. The invention provides a white iron 
alloy member (20,22) having at least one wear surface (24) with 
carbide granules encapsulated in a matrix (28) of white iron and contained in a selected region adjacent the wear surface (24) of the member (20,22). The iron 
alloy member is made by a method of 
casting comprising the steps of: placing a molding insert (35,40) in a mold (60) at a selected location adjacent the wear surface (24); positioning a quantity of 
carbide granules (29), most preferably 
tungsten carbide granules 29, in the molding insert (35,40) before pouring; and pouring molten white iron alloy into the mold (60) to form the 
casting. The 
tungsten carbide granules (29) are substantially contained at a selected location by the molding insert (35,40), and the resulting 
casting (20,22) can be 
heat treated and cooled to provide a component for a rock 
crusher or the like which exhibits improved resistance to wear.