Sorry Mag- this thread is moving so fast I don't even know what correlation you are referring to. lol <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" />

I'm not sure I said that there was a positive correlation between the two...? Only that stronger steels are harder than softer steels and that toughness and hardness cannot both increase simultaneously. Please let me know what you were referring to...