EN AW-6063 vs EN AW-7075: 23% composition overlap. Significantly different materials serving different application areas.
EN AW-6063 vs EN AW-7075
Side-by-side chemical composition and mechanical property comparison.
Overview
EN AW-6063
3.3206
The most common extrusion alloy worldwide. Excellent surface finish, good corrosion resistance, and exceptional extrudability. The standard choice for architectural profiles (window frames, curtain walls, railings), heat sinks, and electrical enclosures.
EN AW-7075
3.4365
THE aerospace aluminum — Al-Zn5.6-Mg-Cu precipitation-hardened to the highest strength of any common aluminum alloy. T6 strength rivaling mild steel at 1/3 the density. Poor weldability and corrosion resistance vs 5xxx/6xxx. Used for aircraft wing skins, fuselage frames, high-stress structural components, and competitive cycling/climbing equipment. Often Alclad for corrosion protection.
| EN AW-6063 | EN AW-7075 | |
|---|---|---|
| Material Number | 3.3206 | 3.4365 |
| Category | Aluminum | Aluminum |
| Standard | EN 573-3 | EN 485-2 |
Chemical composition (wt%)
| Element | EN AW-6063 | EN AW-7075 | Overlap |
|---|---|---|---|
| Si | 0.2–0.6% | 0–0.4% | Partial |
| Mn | 0–0.1% | 0–0.3% | OK |
| Cr | 0–0.1% | 0.18–0.28% | No overlap |
| Cu | 0–0.1% | 1.2–2% | No overlap |
Mechanical properties
| Property | EN AW-6063 | EN AW-7075 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 215 | 540–570 | MPa |
| yield_strength | ≥ 170 | 470–505 | MPa |
| elongation | ≥ 8 | 7–11 | % |
Compatibility Assessment
EN AW-6063 and EN AW-7075 have significantly different compositions (23% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is EN AW-6063 the same as EN AW-7075?
EN AW-6063 and EN AW-7075 have a 23% composition overlap. They are generally not directly interchangeable.
Can I replace EN AW-6063 with EN AW-7075?
Generally not recommended. The compositions differ significantly (23% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between EN AW-6063 and EN AW-7075?
The main differences are in the following elements: Si, Cr, Cu, Mg. EN AW-6063 is a Aluminum grade, while EN AW-7075 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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