Mr. Mark, in my example above I have considered a temperature of 470°F which corresponds to deep straw-yellow colour.
What is the colour of the steel at the temperature of 350°F you are mentioning? Is the down tempering stronger at high carbon steels compared with lower carbon steels?
Jan
What is the colour of the steel at the temperature of 350°F you are mentioning? Is the down tempering stronger at high carbon steels compared with lower carbon steels?
Jan

