EN AW-5086
3.3545Marine-grade aluminium alloy with excellent seawater corrosion resistance. Higher Mg than 5052 but slightly lower than 5083 for a good strength/weldability balance. Used for shipbuilding hulls, tanks, unfired pressure vessels, and cryogenic equipment.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AA | USA | AA 5086 | A95086 | REF |
| 🇪🇺 | EN | Europe | EN AW-5086 / AlMg4 | 3.3545 | 100% |
Sources: ASTM B209, EN 573-3
Chemical composition comparison (wt%)
Side-by-side: EN AW-5086 (EN) (EN 573-3) vs EN AW-5086 / AlMg4 (EN) (EN 573-3)
| Element | EN AW-5086 (EN) | EN AW-5086 / AlMg4 (EN) | Overlap |
|---|---|---|---|
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0.2–0.7% | 0.2–0.7% | OK |
| Cr | 0.05–0.25% | 0.05–0.25% | OK |
| Cu | 0–0.1% | 0–0.1% | OK |
| Ti | 0–0.15% | 0–0.15% | OK |
| Fe | 0–0.5% | 0–0.5% | OK |
| Mg | 3.5–4.5% | 3.5–4.5% | OK |
| Zn | 0–0.25% | 0–0.25% | OK |
Mechanical properties
O H111
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 240–305 | MPa |
| Yield Strength | ≥ 95 | MPa |
| Elongation | ≥ 16 | % |
| Elastic Modulus | ≥ 71 | GPa |
| Density | ≥ 2.66 | g/cm3 |
H32
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 275–340 | MPa |
| Yield Strength | ≥ 195 | MPa |
Compatibility verdict
EN AW-5086 and EN AW-5086 / AlMg4: 100% composition match
Close equivalents but NOT identical.
Related materials
EN AW-6082
3.2315High-strength structural aluminium alloy in the Al-Mg-Si family. One of the strongest 6xxx series alloys due to manganese addition. Replaced 6061 in many European applications. Used for trusses, bridges, cranes, transport, scaffolding, and marine applications. Heat treatable (T6/T651).
EN AW-5083
3.3547The highest-strength non-heat-treatable aluminium alloy. Excellent corrosion resistance (especially seawater), good weldability. Standard alloy for shipbuilding, offshore, pressure vessels, cryogenic applications, and armour plate. Not for continuous service above 65°C under stress (SCC risk).
EN AW-2024
3.1355Classic 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.
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