... die steel Annealing Hardness: HB 225 Max used for cold Dies,Press,Roll,Pressing Dies,Punch,Cutter,ShearB D2 tool steel, 1 ... -530 Gas Cooler 3)QT Hardness:HRC Min58 4)Application: cold Dies,Press,Roll,Pressing Dies,Punch,Cutter,Shear Blade,Blanking Die