... 4.manufacturer,UT% test 1.steel companies alloy material H13 die steel plate 2.Chemical composition: CSiMnPSCrMoV0.390.90.40.0150 ... use of EAF+LF+VD+ESR make the production of die steel are in high purity and good performance 4.Highlight ... of extrusion dies, the mandrel, the forging mold for die forging hammer, forging press dies and die insert for precision forging machine as well as aluminum, copper ...