EN AW-2024 vs EN AC-AlSi9Cu3(Fe): 22% composition overlap. Significantly different materials serving different application areas.
EN AW-2024 vs EN AC-AlSi9Cu3(Fe)
Side-by-side chemical composition and mechanical property comparison.
Overview
EN AW-2024
3.1355
Classic high-strength aerospace aluminium alloy (Al-Cu-Mg). Excellent fatigue resistance — the standard choice for aircraft fuselage skins and wing tension members. Poor corrosion resistance and weldability. Often supplied with Alclad cladding for corrosion protection. In use since 1931.
EN AC-AlSi9Cu3(Fe)
EN AC-46000
The most widely used aluminum high-pressure die casting alloy in Europe. Si 8-11% and Cu 2-4% provide excellent castability and good strength without heat treatment. Higher Fe tolerance (up to 1.3%) prevents die soldering in HPDC. NOT heat-treatable (Cu and Fe form insoluble phases). Used for engine blocks, transmission housings, structural automotive die castings, power tool housings, and industrial die cast components. Equivalent to ASTM A380.0.
| EN AW-2024 | EN AC-AlSi9Cu3(Fe) | |
|---|---|---|
| Material Number | 3.1355 | EN AC-46000 |
| Category | Aluminum | Aluminum |
| Standard | EN 573-3 | EN 1706 |
Chemical composition (wt%)
| Element | EN AW-2024 | EN AC-AlSi9Cu3(Fe) | Overlap |
|---|---|---|---|
| Si | 0–0.5% | 8–11% | No overlap |
| Mn | 0.3–0.9% | ≤ 0.55% | Partial |
| Cr | 0–0.1% | — | — |
| Cu | 3.8–4.9% | 2–4% | Partial |
Mechanical properties
| Property | EN AW-2024 | EN AC-AlSi9Cu3(Fe) | Unit |
|---|---|---|---|
| tensile_strength | 400–430 | ≥ 240 | MPa |
| yield_strength | 270–280 | ≥ 140 | MPa |
| elongation | ≥ 10 | ≥ 1 | % |
Compatibility Assessment
EN AW-2024 and EN AC-AlSi9Cu3(Fe) have significantly different compositions (22% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is EN AW-2024 the same as EN AC-AlSi9Cu3(Fe)?
EN AW-2024 and EN AC-AlSi9Cu3(Fe) have a 22% composition overlap. They are generally not directly interchangeable.
Can I replace EN AW-2024 with EN AC-AlSi9Cu3(Fe)?
Generally not recommended. The compositions differ significantly (22% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between EN AW-2024 and EN AC-AlSi9Cu3(Fe)?
The main differences are in the following elements: Si, Mn, Cu, Mg. EN AW-2024 is a Aluminum grade, while EN AC-AlSi9Cu3(Fe) 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.