Product introduction

　　3A21 aluminum sheet is al Mn alloy. 3A21 aluminum sheet is a widely used antirust aluminum with low strength and can't be strengthened by heat treatment. Therefore, cold working method is often used to improve its mechanical properties. It has high plasticity in annealing state, good plasticity in semi cold work hardening, low plasticity in cold work hardening, good corrosion resistance, good weldability and poor machinability. 3A21 aluminum sheet is mainly used for low load parts requiring high plasticity and good weldability, working in liquid or gas medium, such as oil tank, gasoline or lubricating oil conduit, various liquid containers and other small load parts made by deep drawing: wire rod is used to make rivets. Aircraft, oil pipeline, food and other fields.

Technical parameter

Technical equipment

　　The main production equipment of the plate and strip branch of the group company: 41 casting mills, 7 cold rolling mills, 1 double coiling hot rolling mill, 2 semi continuous casting machines, 5 stretch bending straightening machines, 25 annealing furnaces, 8 cross cutting machines, 3 slitting machines and 2 on-line annealing washers.