Silicon powder is used in the smelting of industrial silicon or ferrosilicon

Silicon powder is used in the smelting of industrial silicon or ferrosilicon
The main function of silicon powder in magnesium-carbon bricks is to consume oxygen in the decarburized layer and increase the oxidation resistance of carbon-containing refractory materials. The main functions of silicon and aluminum in carbon-containing refractory materials are oxidation resistance and reduction of carbon oxidation. For these two antioxidant additives, aluminum powder is stronger than silicon powder. Some companies believe that silicon powder is suitable for smelting refractories with lower temperatures, while aluminum powder is suitable for smelting refractories with higher temperatures. Another point is that the high-temperature strength of carbon-containing refractory materials containing aluminum is higher than that containing silicon powder.

Ultrafine Silicon Powder 325mesh

Metal Silicon Powder 97

Silicon powder	Size (mesh)	Chemical Composition %
		Si	Fe	Al	Ca
		≥	≤
Chemical silicon powder	Si-(20-100 mesh) Si-(30-120 mesh) Si-(40-160 mesh) Si-(100-200 mesh) Si-(45-325 mesh) Si-(50-500 mesh)	99.6	0.2	0.15	0.05
		99.2	0.4	0.2	0.1
		99.0	0.4	0.4	0.2
		98.5	0.5	0.5	0.3
		98.0	0.6	0.5	0.3
Silicon powder for refractory	-150 mesh -200 mesh -325 mesh -400 mesh -600mesh	99.6	0.2	0.15	0.05
		99.2	0.4	0.2	0.1
		99.0	0.4	0.4	0.2
		98.5	0.5	0.3	0.2
		98.0	0.6	0.5	0.3
Low-grade	-200 mesh -325 mesh	95-97	Impurity content≤3.0%