| 摘要 |
PURPOSE: Provided is an alloy composition with excellent machinability for plastic injection molding. CONSTITUTION: The alloy composition for plastic injection molding is characterized by comprising C 0.15-0.20 wt. %, Si 0.25-0.35 wt.%, Mn 0.58-0.70 wt.%, Ni 1.60-1.90 wt.%, Cr 0.65-0.85 wt.%, Mo 0.20-0.40 wt.%, P 0.20-0.40 wt.%, a balance of Fe and other unavoidable impurities. Further, the alloy composition contains a certain amount of Al and Ti.
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