First, there is a high specific strength and specific modulus, the ship’s structural strength and size and material yield strength and elastic modulus are closely related, due to the elastic modulus and density of aluminum alloy is roughly the same, the addition of alloying elements also affect the slight , So within a certain range to improve the yield strength to reduce the ship structure is strong. High strength aluminum alloys are often difficult to have excellent corrosion resistance and weldability. Therefore, marine aluminum alloy is generally medium strength, corrosion resistant welding alloy;

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