QUENCHED AND TEMPERED STEEL, USE THEREOF AS BAR MATERIAL, THREADED SPINDLE, TOOTHED RACK, TOOTHED RACK ELEMENTS AND METHOD FOR PRODUCING SAME

摘要

The invention relates to a roll-hardened quenched and tempered steel, having the elements given in proportions by mass of the total weight: 0.5% up to and including 0.6% of carbon (C), 0.0031 % up to and including 0.005% of boron (B) and 3.5 parts or more parts titanium (Ti) in relation to 1 part nitrogen (N).