Assessment of steels for future APT conical axles (TN-MET-19)

An assessment of steels for use as conical axles for APT has been made on the basis of the known deleterious effect of inclusions on fatigue. Three possible steels are discussed: two air-melted En24 steels of different manufacture, and a vacuum-remelted En24 steel originally used for the prototype axles. These...