... grade alloy, with good wear resistance, used for processing blades,wear resistance parts etc.YG6AYM814.7 ... strength, wear resistance lower than MK6A, used for processing blades,wear resistance parts etc.YG8YM1514.5 ... 2500 87.5 Used for punch dies,stamping dies and wear resistance parts ... 5 2800 85.5 High bending strength,used for step dies and other stampings dies.YG20YM2T14.5 ...