EN AW-6061 vs EN AC-AlSi10Mg: 35% composition overlap. Significantly different materials serving different application areas.
EN AW-6061 vs EN AC-AlSi10Mg
Side-by-side chemical composition and mechanical property comparison.
Overview
EN AW-6061
3.3211
The most widely used aluminium alloy in North America. Good balance of strength, corrosion resistance, and machinability. Heat treatable (T6). Used for structural components, automotive parts, marine fittings, bicycle frames, and general engineering. Being replaced by 6082 in European applications.
EN AC-AlSi10Mg
EN AC-43000
Versatile aluminum casting alloy with excellent castability and good mechanical properties. THE standard alloy for metal 3D printing (SLM/DMLS/L-PBF) due to its excellent processability with laser powder bed fusion. Also widely used in conventional sand casting and gravity die casting. Si 9-11% provides outstanding fluidity and low shrinkage. Used for automotive structural parts, aerospace components, 3D-printed functional prototypes and series parts, heat exchangers, and complex thin-walled castings.
| EN AW-6061 | EN AC-AlSi10Mg | |
|---|---|---|
| Material Number | 3.3211 | EN AC-43000 |
| Category | Aluminum | Aluminum |
| Standard | EN 573-3 | EN 1706 |
Chemical composition (wt%)
| Element | EN AW-6061 | EN AC-AlSi10Mg | Overlap |
|---|---|---|---|
| Si | 0.4–0.8% | 9–11% | No overlap |
| Mn | 0–0.15% | ≤ 0.45% | OK |
| Cr | 0.04–0.35% | — | — |
| Cu | 0.15–0.4% | ≤ 0.05% | No overlap |
Mechanical properties
| Property | EN AW-6061 | EN AC-AlSi10Mg | Unit |
|---|---|---|---|
| tensile_strength | ≥ 290 | ≥ 150 | MPa |
| yield_strength | ≥ 240 | ≥ 80 | MPa |
| elongation | ≥ 8 | ≥ 2 | % |
Compatibility Assessment
EN AW-6061 and EN AC-AlSi10Mg have significantly different compositions (35% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is EN AW-6061 the same as EN AC-AlSi10Mg?
EN AW-6061 and EN AC-AlSi10Mg have a 35% composition overlap. They are generally not directly interchangeable.
Can I replace EN AW-6061 with EN AC-AlSi10Mg?
Generally not recommended. The compositions differ significantly (35% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between EN AW-6061 and EN AC-AlSi10Mg?
The main differences are in the following elements: Si, Cu, Mg. EN AW-6061 is a Aluminum grade, while EN AC-AlSi10Mg 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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