MAGIVAL MG4 is a free machining ferritic stainless steel grade with the machinability and corrosion resistance as MG3 (Alloy Digest SS-1164, December 2013), and offering a higher magnetic permeability and lower coercive force than MG1 (Alloy Digest SS-1159, October 2013). Its higher silicon content allows it to reduce the eddy currents losses in components working in AC, and its molybdenum content allows applications in mild chloride corrosive environments. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1165. Producer or source: Valbruna Stainless Steel.