Development of New High Strength Special Steel Propeller for Big Ships

摘要

A new special stainless steel which is highly suitable for propeller material has been developed. The steel has the corrosion fatigue strength larger than 40 kg/sq mm in sea water, twice as large as that of nickel-aluminium bronze. It has also excellent anti-erosion property about thirty times as strong as that of nickel-aluminium bronze. (Author)