ARMCO MAGNETIC INGOT IRON is a grade of commercially pure iron recommended for magnetic purposes. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Fe-10. Producer or source: Armco Inc., Eastern Steel Division. Originally published March 1956, revised January 1963.