EN AC-AlSi8Cu3 vs EN AW-5083: 23% composition overlap. Significantly different materials serving different application areas.
EN AC-AlSi8Cu3 vs EN AW-5083
Side-by-side chemical composition and mechanical property comparison.
Overview
EN AC-AlSi8Cu3
EN AC-46200
General-purpose aluminum sand and gravity die casting alloy with copper addition for improved strength. Si 7.5-9.5% and Cu 2.0-3.5% provide good castability and moderate strength without heat treatment. Used for general-purpose engine components, industrial housings, pump bodies, and medium-duty structural castings where machinability is important. Lower Fe tolerance than EN AC-46000 makes it suitable for sand/gravity casting.
EN AW-5083
3.3547
The highest-strength non-heat-treatable aluminum alloy. Al-Mg4.5-Mn with outstanding seawater and industrial chemical resistance. Retains exceptional strength after welding (unlike 6xxx/7xxx). ASTM B928 certified for marine service. THE shipbuilding aluminum — also used for rail cars, pressure vessels, cryogenic tanks, truck bodies, and LNG applications. Available O, H111, H116, H321 tempers.
| EN AC-AlSi8Cu3 | EN AW-5083 | |
|---|---|---|
| Material Number | EN AC-46200 | 3.3547 |
| Category | Aluminum | Aluminum |
| Standard | EN 1706 | EN 485-2 |
Chemical composition (wt%) — Pro
| Element | EN AC-AlSi8Cu3 | EN AW-5083 | Overlap |
|---|---|---|---|
| Si | 7.5–9.5% | 0–0.4% | No overlap |
| Mn | 0.15–0.65% | 0.4–1% | Partial |
| Cr | — | 0.05–0.25% | — |
| Cu | 2–3.5% | 0–0.1% | No overlap |
| Al | |||
| Ti | |||
| Fe | |||
| Mg | |||
| Zn |
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Sign up free — 3 comparisons/day freeMechanical properties — Pro
| Property | EN AC-AlSi8Cu3 | EN AW-5083 | Unit |
|---|---|---|---|
| Tensile Strength | ≥ 150 | 270–345 | MPa |
| Yield Strength | ≥ 90 | 115–130 | MPa |
| Elongation | ≥ 1 | ≥ 16 | % |
| Hardness HB | |||
| Density | |||
| Elastic Modulus |
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Sign up free — 3 comparisons/day freeCompatibility Assessment
EN AC-AlSi8Cu3 and EN AW-5083 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 AC-AlSi8Cu3 the same as EN AW-5083?
EN AC-AlSi8Cu3 and EN AW-5083 have a 23% composition overlap. They are generally not directly interchangeable.
Can I replace EN AC-AlSi8Cu3 with EN AW-5083?
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 AC-AlSi8Cu3 and EN AW-5083?
The main differences are in the following elements: Si, Mn, Cu, Mg. EN AC-AlSi8Cu3 is a Aluminum grade, while EN AW-5083 is a Aluminum grade.
Related Comparisons
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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.