high speed steel straight ejector pin
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DIN 1.3343 JIS SKH51 ASTM M2
DIN 1.3343,JIS SKH51,ASTM M2 General plastic mold 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 ≤HB255,pre-hardened HRC 40-46/HRC50-55
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