3A21 aluminum circles is AI-Mn alloy,widely used as antirust aluminum,strength is not high (only slightly higher than the industrial pure aluminum),cannot heat treatment to strengthen,reason often use cold working methods to improve its mechanical properties,in the annealed state with high plasticity,in a cold work hardening plasticity is good.when the cold work hardening plasticity is low,good corrosion resistance,good weldability,cutting performance is bad.
AApplication:
Cooking utensils,medical applications,capacitors.road signs.
Features:
Good weldability,good tensile strength,elongation rate is better than 25% of the 3003 aluminum plate.
Smooth,good plasticity and resistance to stress.



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