... )Performances &applications recommendedYG614.989.52150Good Wear resistance, used for hard wood,processing original wood,aluminum section bar,brass ... .YG1114.487.52260Medium grain,for wear parts and mining toolsYG1514.186.52400Medium grain, for mining tools, cold heading and punching ... .592.53400Wear resistance and strength comparatively higher,suitable for processing cast iron,non-ferrous metal and non- ...