EN AW-5083 vs EN AW-5754: Both 5xxx marine alloys — 5083 much stronger, 5754 more formable
EN AW-5083 vs EN AW-5754
Side-by-side chemical composition and mechanical property comparison.
Overview
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 AW-5754
3.3535
Medium-strength non-heat-treatable aluminium alloy with good corrosion resistance and excellent weldability. Lower Mg than 5083 for better formability. The standard alloy for automotive body panels (inner), chemical equipment, and food industry applications.
| EN AW-5083 | EN AW-5754 | |
|---|---|---|
| Material Number | 3.3547 | 3.3535 |
| Category | Aluminum | Aluminum |
| Standard | EN 485-2 | EN 573-3 |
Chemical composition (wt%)
| Element | EN AW-5083 | EN AW-5754 | Overlap |
|---|---|---|---|
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0.4–1% | 0–0.5% | Partial |
| Cr | 0.05–0.25% | 0–0.3% | OK |
| Cu | 0–0.1% | 0–0.1% | OK |
Mechanical properties
| Property | EN AW-5083 | EN AW-5754 | Unit |
|---|---|---|---|
| tensile_strength | 270–345 | 190–240 | MPa |
| yield_strength | 115–130 | ≥ 80 | MPa |
| elongation | ≥ 16 | ≥ 17 | % |
Compatibility Assessment
5083 has 4.5% Mg (UTS 305 H321) vs 5754 with 3% Mg (UTS 245 H22). 5083 is the strongest non-heat-treatable Al and the default for ship hulls. 5754 is easier to form and less susceptible to stress corrosion at elevated temperatures. Choose 5083 for structural marine; 5754 for automotive/formed parts.
Frequently Asked Questions
Is EN AW-5083 the same as EN AW-5754?
EN AW-5083 and EN AW-5754 have a 65% composition overlap. Both 5xxx marine alloys — 5083 much stronger, 5754 more formable
Can I replace EN AW-5083 with EN AW-5754?
Generally not recommended. The compositions differ significantly (65% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between EN AW-5083 and EN AW-5754?
The main differences are in the following elements: Mn, Mg. EN AW-5083 is a Aluminum grade, while EN AW-5754 is a Aluminum grade.
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