6111 aluminum is a strengthened Al -Mg -Si -Cu alloy, having similar properties to 6061 aluminum plate. After casting and rolling, it is finally cold rolled to 1.55 mm. 6111 aluminum plate has the characteristics of impact resistance, moderate strength, good weldability, etc., and is widely used in auto parts, mechanical parts, precision machined parts, automotive structural parts and other fields.

It is favored by European and American countries because of its highest strength, thus achieving a more significant lightweight effect. At present, North American auto companies mainly use 6111 and 6022 aluminum alloy. European automobile companies mainly use 6016 aluminum sheet. Japanese car manufacturers mainly use 6016 and 6022 aluminum alloys, but also use some 6111 aluminum.

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