MNX50 is a new type of Manganese subjected to a specific proprietary process. This results in an alloy with increased abrasion resistance that exceeds the mechanical properties of traditional Manganese Steel. F60/5 combines the best qualities from each chrome alloy (low, medium and high). Result is an all-in-one type of wear resistance product Wear resistant Insert (WRI) technology for HSI and VSI crushers to improve the abrasion resistance of our standard alloys and F60/5 alike.