BAINITE STEEL RAIL THERMIT WELD METAL OR THERMIT AGENT THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a termit weld metal of a bainite steel rail and a thermit agent. ;SOLUTION: This thermit weld metal of the bainite steel rail comprises in wt.%, 0.1-0.6% C, 1.0 or more-0.4% or less Si, 0.1-2.5% Mn, 0.05-1.5% Al and one kind or two kinds of 0.2-2.5% Cr, 0.05-1.5% Mo. When it is necessary, one kind or two or more kinds of 0.1-3.5% Ni, 0.1-1.5% Cu, 0.005-0.3% V, 0.001-0.3% Ti, 0.01-0.05% Nb, 0.0001-0.005% B and the rest is Fe and inevitable impurity, are included. Furthermore, carbon equivalent expressed in Ceq%=C %+Si%/24+Mn%/6+Ni%/40+Cr%/5+Mo%/4+V%/16 is within a range of 0.5-1.5%.;COPYRIGHT: (C)1999,JPO