Patent ID: 6162389
Filing Date: 2000-12-19
Classification: C22C

Abstract:
A non heat-treated steel comprising less than 0.05 wt % C, 0.005 to 2.0 wt % Si, more than 0.5 to 5.0 wt % Mn, 0.1 to 10.0 wt % Ni, more than 1.0 to 4.0 wt % Cu, 0.0002 to 1.0 wt % Al, 0.005 to 0.5 wt % S, and 0.0010 to 0.0200 wt % N, the steel having a tensile strength of at least about 827 MPa and a toughness of at least about 101 J/cm.sup.2.