Magnesium sheet metal and strip obtained by cast rolling, thin strip- and/or thin slab-casting of an alloy composition having e.g. magnesium and aluminum and finish-rolling the composition, useful in vehicle lightweight constructions

摘要

Magnesium sheet metal and strip (A) with excellent remolding properties preferably for vehicle lightweight construction, obtained by cast rolling, thin strip casting and/or thin slab casting of an alloy composition to a thickness of = 20 mm; subsequently finish-rolling the obtained composition to a thickness of greater than 10 mm and optionally roll forming the composition, is claimed, where the alloy composition consists of magnesium and an alloy of e.g. aluminum (= 10 wt.%), zinc (= 10 wt.%), manganese (= 1.5 wt.%), nickel (maximum of 0.005 wt.%) and copper (maximum 0.01 wt.%). Magnesium sheet metal and strip (A) with excellent remolding properties preferably for vehicle lightweight construction, obtained by cast rolling, thin strip casting and/or thin slab casting of an alloy composition to a thickness of = 20 mm; subsequently finish-rolling the obtained composition to a thickness of greater than 10 mm and optionally roll forming the composition, is claimed, where the alloy composition consists of magnesium and an alloy of aluminum (= 10 wt.%), zinc (= 10 wt.%), manganese (= 1.5 wt.%), nickel (maximum of 0.005 wt.%), iron (maximum 0.005 wt.%), copper (maximum 0.01 wt.%) with addition of at least an element from rare earth elements of strontium, calcium or zinc, where the iron-manganese ratio is maximum of 0.0125 when the aluminum content in the aluminum alloy is greater than 1 wt.%. An independent claim is included for the magnesium alloy comprising nickel (maximum of 0.002 wt.%), iron (maximum of 0.004 wt.%), copper (maximum of 0.008 wt.%) and aluminum containing magnesium alloys with an aluminum content of greater than 1 wt.% and the iron-manganese ratio of less than 0.0125.