In this article, magnetizing properties of different packed beds constructed from magnetic balls, pieces of rods, and chips were investigated in order to determine their effect on the magnetic filters' performance. Magnetizing curves obtained from the results show that the magnetization of packed beds constructed from magnetic balls is stronger than of those constructed from pieces of rods and/or chips. Effects of the external magnetic field intensity, filter length, and recycle number on the effectiveness of magnetic filtration of both solutions were also investigated. We found that corrosion particle capturing capacity of the filter from water medium in the filter increases by amplifying external magnetic field intensity, raising filter length, and recycle number until the filter is overloaded.