The 25MnBM track plate steel is produced by 50 ton EAF short process. The control technology of TiN inclusions and the effect of RE on non-metallic inclusions in 25MnBM of steel are studied. The amount and size of TiN inclusions are greatly improved by reducing the nitrogen content of steel below 70 X 10
-6
and optimizing the continuous casting process. The effect of RE on non-metallic inclusions in 25MnBM track plate steel is studied. Test results show that
after adding 0.20 - 0.25 kg/t RE into steel
the total area of non-metallic inclusions can be reduced
the maximum inclusion size and the average inclusion size decrease