Ferro silicon aluminum is one type of composite strong deoxidizer. For many years, It always adopt the aluminum cakes or aluminum ingot added into the steel-making furnace or ladle steel directly,this is the primary aluminum, which is not only costly, but aluminum is oxidized by oxygen in the air and slag to 70%-90% which caused excessive aluminum burnout and large fluctuations in residual aluminum content in molten steel.
Model | Chemical Composition (%) | |||||
Al | Si | Mn | C | P | S | |
FeSi18Al48 | 48min | 18min | 0.4max | 0.5max | 0.05max | 0.05max |
FeSi25Al35 | 35min | 25min | 0.4max | 0.5max | 0.05max | 0.05max |