HIGH STRENGTH HYPEREUTECTOID STEEL WIRE HAVING EXTENDED LIMIT OF OCCURRENCE OF DELAMINATION

摘要

PURPOSE:To obtain a high strength hypereutectoid steel wire having an extended limit of occurrence of delamination by adding specified percentages of C, Si, Mn, Al and Co to Fe and specifying the relation between the Co and C contents. CONSTITUTION:A steel wire consisting of, by weight, 0.8-1.3% C, =1.0% Si, 0.3-0.9% Mn, =0.5 Al, 0.1-4.0% Co and the balance Fe with inevitable impurities and satisfying relation represented by an equation %Co=15(%C-0.8)3 is prepd. The steel wire is patented and drawn to obtain a high strength hypereutectoid steel wire having an extended limit of occurrence of delamination.