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3.3211
EN AW-6061
The 3.3211 (EN AW-6061 (AlMg1SiCu)) is an [[element:Al|aluminum]] alloy: lightweight, [[glossary:korrosion|corrosion]]-resistant, and easy to weld — but only with the right process and clean preparation. Typical composition: 0.2 % Cr, 0.6 % Si.