Material basis

Many are precipitation hardenable. High-strength Cu-bearing grades require attention to stress-corrosion cracking and corrosion protection.

Applications

Aircraft structures, aerospace forgings, high-performance sporting goods, defense and highly loaded components.

Common grades / designations

Common alloys include 7005, 7020, 7050, 7075 and 7150.

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.