EN AW-5454 vs EN AW-5052: Both moderate-Mg 5xxx — 5454 approved for pressure vessels
EN AW-5454 vs EN AW-5052
Side-by-side chemical composition and mechanical property comparison.
Overview
EN AW-5454
3.3537
Al-Mg alloy specifically approved for pressure vessel applications (EN 13445, ASME Section VIII). Higher Mg than 5052 (2.7% vs 2.5%) with Cr addition for SCC resistance. Max continuous service temp 149°C for welded pressure vessels. Used for road tankers, chemical storage tanks, heat exchangers, and marine structures.
EN AW-5052
3.3523
Medium-strength non-heat-treatable aluminium with excellent corrosion resistance and good weldability. Lower Mg than 5083/5754 for better formability. Used for marine components, fuel tanks, appliances, electronic chassis, and general sheet metal.
| EN AW-5454 | EN AW-5052 | |
|---|---|---|
| Material Number | 3.3537 | 3.3523 |
| Category | Aluminum | Aluminum |
| Standard | EN 573-3 | EN 573-3 |
Chemical composition (wt%)
| Element | EN AW-5454 | EN AW-5052 | Overlap |
|---|---|---|---|
| Si | 0–0.25% | 0–0.25% | OK |
| Mn | 0.5–1% | 0–0.1% | No overlap |
| Cr | 0.05–0.2% | 0.15–0.35% | Partial |
| Cu | 0–0.1% | 0–0.1% | OK |
Mechanical properties
| Property | EN AW-5454 | EN AW-5052 | Unit |
|---|---|---|---|
| tensile_strength | 250–305 | 170–215 | MPa |
| yield_strength | 180–230 | ≥ 65 | MPa |
| elongation | 8–14 | ≥ 19 | % |
Compatibility Assessment
5454 has slightly higher Mg (2.7 vs 2.5%) and Cr (0.05-0.20%) for better SCC resistance. 5454 is approved for pressure vessels to 149°C (EN 13445/ASME VIII). 5052 is cheaper and more widely available. Choose 5454 for pressure vessels and tanks; 5052 for general marine/sheet.
Frequently Asked Questions
Is EN AW-5454 the same as EN AW-5052?
EN AW-5454 and EN AW-5052 have a 80% composition overlap. Both moderate-Mg 5xxx — 5454 approved for pressure vessels
Can I replace EN AW-5454 with EN AW-5052?
In many cases, yes. The compositions overlap significantly (80%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between EN AW-5454 and EN AW-5052?
The main differences are in the following elements: Mn, Cr, Mg. EN AW-5454 is a Aluminum grade, while EN AW-5052 is a Aluminum grade.
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