EN AW-6063 vs EN AW-6061: 36% composition overlap. Significantly different materials serving different application areas.
EN AW-6063 vs EN AW-6061
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-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-6063 | EN AW-6061 | |
|---|---|---|
| Material Number | 3.3206 | 3.3211 |
| Category | Aluminum | Aluminum |
| Standard | EN 573-3 | EN 755-2 |
Chemical composition (wt%)
| Element | EN AW-6063 | EN AW-6061 | Overlap |
|---|---|---|---|
| Si | 0.2–0.6% | 0.4–0.8% | Partial |
| Mn | 0–0.1% | 0–0.15% | OK |
| Cr | 0–0.1% | 0.04–0.35% | Partial |
| Cu | 0–0.1% | 0.15–0.4% | No overlap |
Mechanical properties
| Property | EN AW-6063 | EN AW-6061 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 215 | 260–310 | MPa |
| yield_strength | ≥ 170 | 240–275 | MPa |
| elongation | ≥ 8 | 8–12 | % |
Compatibility Assessment
EN AW-6063 and EN AW-6061 have significantly different compositions (36% 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-6061?
EN AW-6063 and EN AW-6061 have a 36% composition overlap. They are generally not directly interchangeable.
Can I replace EN AW-6063 with EN AW-6061?
Generally not recommended. The compositions differ significantly (36% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between EN AW-6063 and EN AW-6061?
The main differences are in the following elements: Si, Cr, Cu, Mg. EN AW-6063 is a Aluminum grade, while EN AW-6061 is a Aluminum grade.
Related Comparisons
View full data for each material:
Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.