| 摘要 |
There is provided a turbocharger component made of a cast austenitic stainless steel consisting of C: 0.40 to 0.70 wt%, Si: 1.80 to 2.20 wt%, Mn: 1.50 wt% or less, S: 0.20 to 0.40 wt%, P: 0.06 wt% or less, Cr: 18.00 to 21.00 wt%, Ni: 12.00 to 14.00 wt%, balance Fe and inevitable impurities. The cast steel exhibits an optimum combination of heat resistance, corrosion resistance, wear resistance and machinability. The turbocharger component may be a nozzle ring carrying a plurality of adjustable vanes in a variable nozzle turbocharger. |
