Method of manufacturing carburized steel products.

摘要

This invention is concerned with the processing method of carburized product with an increased hardening depth, in which boron treated steel comprising by weight percent 0.18 SIMILAR 0.35 % C, 0.06 SIMILAR 0.3 % Si, 0.5 SIMILAR 1.5 % Mn, <1 % Cr, <0.02 % S, <0.03 % P, 0.01 SIMILAR 0.08 % Al, <0.05 % Ti, <0.012 % N2, <0.003 % O2 and 0.0005 SIMILAR 0.003 % B is carburized at the temperature range of 925 SIMILAR 1050 DEG C. As described in the above, if the steel products made of boron treated steel are