... , ESR or VAR.Applications:Highly stressed hot work tools in die forging presses for steels , brass and non ferrous metal, ... metal alloys, mandrels, inner liners, stems, die holders, dummy blocks, pressure pads, bolsters, die and containers for metal tube and rod extrusion ... and rivets, hot shear blades, forging dies and press die inserts, die casting tools ,hot forming dies, hot gripper and header ...