... Grade: JT106U, YG6X, JT302A, JT401, YG15 3. High quality and good service GradeISO codeCobalt content(wt-%)Hardness(HRA)Density(g ... cast irons, heat-resistant alloy steel,nonferrous metals,wood,paper,plastic and aluminum -magnesium,etc. It is recommended for making solid ... , titaniumalloys, stainless steel, mould steel, chilled hardened steel and grey cast irons, etc.It is recommended for making milling ...