5182 aluminum sheet belongs to Al-Mg rust-proof aluminum, has a good performance in weldability and cold-workability, with a moderate intensity. 5182 aluminum sheet is wildly used in our life, especially used in building industry, is one of the promising alloy. The performance of 5182 aluminum sheet and 5a02 aluminum sheet are similar, but the Mg content of 5182 aluminum sheet is slightly higher than that of 5a02 aluminum sheet, and 5182 aluminum sheet added a small amount of silicon, so 5182 aluminum sheet has a better welding performance, and has a good performance of gas welding, argon arc welding, spot welding and roll welding.

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