The size of silicon manganese particles has a significant impact on the steelmaking process. Large-sized particles will react slowly with the molten steel, resulting in a delay in the deoxidation process, and may also cause an incomplete reduction of oxygen content in the steel. Smaller particles, on the other hand, are more reactive and enable a quicker deoxidation process. They also provide a higher surface area for chemical reactions, resulting in a more thorough reduction of oxygen in the steel. Therefore, it is essential to control the size of silicon manganese particles during steelmaking processes to achieve the desired steel quality.