Material basis

Many 2xxx alloys are precipitation hardenable. Copper increases strength but generally reduces corrosion resistance and weldability compared with 5xxx/6xxx families.

Applications

Aircraft structures, aerospace forgings, high-strength machined parts and transport components.

Common grades / designations

Common alloys include 2011, 2014, 2017, 2024 and 2219.

Engineering notes

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Selection and procurement checks

Confirm alloy, temper, product form, dimensions, applicable ASTM/EN/ISO/AA specification, mechanical properties, corrosion environment, joining route and mill certification before approval.

Element Folio engineering reference. Verify the latest governing specification and manufacturer data for final design or procurement.