What is 5052 aluminum sheet? 5052 aluminum sheet is part of the 5000 series of aluminum. The grades in this series are alloyed with magnesium (2.5%) and have medium to high strength properties. 5052 aluminum is considered to have good weldability and corrosion resistance. 5052 aluminum also contains 0.25% chromium. 5052 Aluminum Sheet Surface Display 5052 Aluminum Sheet Surface Display 5052 aluminum contains no copper, so it is less susceptible to salt water corrosion than copper-containing alloys. 5052 aluminum plate is a non-heat treatable aluminum alloy with excellent surface finish quality. 5052 aluminum alloy Chemical Composition (For Reference) Si Fe Cu Mn Mg Cr Zn Ti Others: Each Others: Total Al: Min. 0.25 0.40 0.10 0.10 2.2~2.8 0.15~0.35 0.10 â?? 0.05 0.15 remainder Table Resource: 5052 aluminum sheet Typical Features Of 5052 Aluminum Sheet For many years, before the advent of 5083 and 5086, 5052 alloy aluminum was the strongest non-heat treatable alloy on the market.