EN AW-7050 vs EN AW-6061: 18% composition overlap. Significantly different materials serving different application areas.
EN AW-7050 vs EN AW-6061
Side-by-side chemical composition and mechanical property comparison.
Overview
EN AW-7050
3.4144
High-strength aerospace aluminium developed by Alcoa for thick-plate applications. Zr addition (instead of Cr) reduces quench sensitivity for superior properties in thick sections. T7451 temper gives excellent SCC resistance + fracture toughness. Used for fuselage frames, bulkheads, wing spars, and thick structural aerospace components.
EN AW-6061
3.3211
THE US structural aluminum alloy — AlMg1SiCu. Good strength (UTS 290 T6), excellent corrosion resistance, and good weldability. THE default choice in North America for structural and machined parts. Cu addition gives slightly better strength than 6082 in some tempers but slightly worse corrosion. Used for structural frames, bicycle frames, aircraft fittings, marine hardware, and general machined components.
| EN AW-7050 | EN AW-6061 | |
|---|---|---|
| Material Number | 3.4144 | 3.3211 |
| Category | Aluminum | Aluminum |
| Standard | AMS 4050 | EN 755-2 |
Chemical composition (wt%)
| Element | EN AW-7050 | EN AW-6061 | Overlap |
|---|---|---|---|
| Si | 0–0.12% | 0.4–0.8% | No overlap |
| Mn | 0–0.1% | 0–0.15% | OK |
| Cr | — | 0.04–0.35% | — |
| Cu | 2–2.6% | 0.15–0.4% | No overlap |
Mechanical properties
| Property | EN AW-7050 | EN AW-6061 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 510 | 260–310 | MPa |
| yield_strength | ≥ 450 | 240–275 | MPa |
| elongation | ≥ 9 | 8–12 | % |
Compatibility Assessment
EN AW-7050 and EN AW-6061 have significantly different compositions (18% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is EN AW-7050 the same as EN AW-6061?
EN AW-7050 and EN AW-6061 have a 18% composition overlap. They are generally not directly interchangeable.
Can I replace EN AW-7050 with EN AW-6061?
Generally not recommended. The compositions differ significantly (18% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between EN AW-7050 and EN AW-6061?
The main differences are in the following elements: Si, Cu, Zn, Mg. EN AW-7050 is a Aluminum grade, while EN AW-6061 is a Aluminum grade.
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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