A class of rust-resistant aluminum alloys with magnesium as the main alloying element. Contains 2.0-9.6% magnesium and 0.3-0.8% manganese, and also contains less … The main grades are LF2, LF3, LF5, LF6, LF7, LF10, LF11 and LF12. In industry, it is often processed into various tubes, rods, shapes, wires, foils and forgings