9Cr18 centerless grinding round bars
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440 9Cr18 centerless grinding round bars
440 9Cr18 General cold work die steel with good machinability,to be made die casting mold,extrusion and injection mold and ejector pins,ejector sleeve,punches,block gauge,measuring tools. High wear resistance,high toughness,small deformation caused by heat treatment. Have a high and uniform hardness after heat treatment,heat resisting,resistance to high temperature oxidation,good toughness,machinability and weldability. Annealing ≤HB269
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