EN AW-7050 vs EN AW-1050A: 31% composition overlap. Significantly different materials serving different application areas.
EN AW-7050 vs EN AW-1050A
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-1050A
3.0255
Commercially pure aluminum (99.5% Al minimum). Excellent corrosion resistance, highest thermal and electrical conductivity among Al alloys, and outstanding formability. Low strength (UTS ~100 MPa annealed) limits structural use. Non-heat-treatable — strengthened only by cold work (H14/H24 tempers). Used for chemical processing equipment, food packaging foil, reflectors, heat exchangers, electrical busbars, capacitor foils, and architectural cladding/roofing. The baseline aluminum for conductivity applications.
| EN AW-7050 | EN AW-1050A | |
|---|---|---|
| Material Number | 3.4144 | 3.0255 |
| Category | Aluminum | Aluminum |
| Standard | AMS 4050 | EN 573-3 |
Chemical composition (wt%)
| Element | EN AW-7050 | EN AW-1050A | Overlap |
|---|---|---|---|
| Si | 0–0.12% | ≤ 0.25% | OK |
| Mn | 0–0.1% | ≤ 0.05% | OK |
| Cu | 2–2.6% | ≤ 0.05% | No overlap |
| Al | — | ≥ 99.5% | — |
Mechanical properties
| Property | EN AW-7050 | EN AW-1050A | Unit |
|---|---|---|---|
| tensile_strength | ≥ 510 | 65–95 | MPa |
| yield_strength | ≥ 450 | ≥ 20 | MPa |
| elongation | ≥ 9 | ≥ 25 | % |
Compatibility Assessment
EN AW-7050 and EN AW-1050A have significantly different compositions (31% 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-1050A?
EN AW-7050 and EN AW-1050A have a 31% composition overlap. They are generally not directly interchangeable.
Can I replace EN AW-7050 with EN AW-1050A?
Generally not recommended. The compositions differ significantly (31% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between EN AW-7050 and EN AW-1050A?
The main differences are in the following elements: Cu, Zn, Mg. EN AW-7050 is a Aluminum grade, while EN AW-1050A 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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