High chromium cast iron blow bar is of wear-resisting, because its matrix contains certain amount of Cr7c3 type carbide. the carbide quantity and distribution direct influence the performance of the blow bars. If Cr7C3 type carbide disorder distribution, the micro hardness of the part is 1300-1800 HV. however, if Cr7C3 directional distribution, the axial section micro hardness will reach more than 1800HV. after microalloyed, the micro hardness will be up 2000HV. this is also the main reason why directional solidification can improve the wear resistance of the high chromium cast iron. the blow bars of our company all adopt the technologies of directional solidification, compound modification treatment. We use multiple micros alloying to improve the carbide micro hardness and reasonable selection of Cr/C value, control the type and content of the carbide. So our high chromium blow bars can satisfy different users' requirement at all kinds of working conditions.

Our blow bars can be compared with Germany crusher parts aNd had been widely recognized by customers at home and abroad market after they launch the market and the market share is improving constantly.