The Effect of Aluminum on Properties of High Carbon Chromium Steels

Abstract

for 1% aluminum-1% silicon steel. (2) The rate of softening with tempering and the magnitude of this decrease in softening rate is related to the aluminum content.In fact the rate of softening becomes nil at about 1% or more aluminum and silicon, and these steels have the hardness of Rockwell C 60 after temering From the results of the dilatometer test, it is found that the temperature at which the third stage contraction can be detected is raised with the aluminum or silicon content. (4) It is estimated that the operating temperature of 1% carbon with increase in aluminum content from 0.02 to 1.0%.