The cord steel 82A is melt by 80 t LD-LF-CC process. It is found that ladle refractories have obvious influence on Al content in steel. Two kinds of ladle refractories ( magnesia carbon brick and magnesia alumina carbon brick) are used for industrial production. The test results show that when 82 A cord steel is produced by using magnesia carbon brick ladle with refining slag basicity 0.9
the content of Al in steel can be controlled below 0.001%
and the inclusions can be controlled in the low melting point zone
which is beneficial to improve the quality of 82A cord steel and the wire breaking rate decreases from original 1% to 0.42%.