摘要:With the process measures including using low titanium hot metal, alloys and slagging materials, eccentric bottom tapping and alloying in tapping in EAF steelmaking, using Si-Al compound deoxidation and CaO-MgO-SiO2-Al2O3slag series with basicity 3 ~5 in LF refining,30 Pa VD treatment and shielding casting,the analysis results of Φ150 mm forged bar are oxygen content in GCrl5 bearing steel being 4.5 X 10-6~9 x 10-6,Ti content 0.0010% ~0.0015% with minor 5 μm TiN inclusions to meet the quality requirement for super grade quality low titanium bearing steel.