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).
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AA | USA | AA 6082 | A96082 | REF |
| 🇪🇺 | EN | Europe | EN AW-6082 / AlSi1MgMn | 3.2315 | 100% |
| 🇫🇷 | AFNOR | France | A-SGM0,7 | — | 98% |
| 🇬🇧 | BS | United Kingdom | H30 (old) | — | 95% |
Sources: ASTM B221, EN 573-3, NF EN 573-3, BS 1474
Chemical composition comparison (wt%)
Side-by-side: EN AW-6082 (EN) (EN 573-3) vs A-SGM0,7 (AFNOR)
| Element | EN AW-6082 (EN) | A-SGM0,7 (AFNOR) | Overlap |
|---|---|---|---|
| Si | 0.7–1.3% | — | — |
| Mn | 0.4–1% | — | — |
| Cr | 0–0.25% | — | — |
| Cu | 0–0.1% | — | — |
| Ti | 0–0.1% | — | — |
| Fe | 0–0.5% | — | — |
| Mg | 0.6–1.2% | — | — |
| Zn | 0–0.2% | — | — |
Mechanical properties
T6 (solution treated + artificially aged)
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ≥ 310 | MPa |
| Yield Strength | ≥ 260 | MPa |
| Elongation | ≥ 8 | % |
| Hardness HB | 90–105 | HB |
| Elastic Modulus | ≥ 70 | GPa |
| Density | ≥ 2.71 | g/cm3 |
Heat treatment
| Process | Temperature | Medium | Holding Time | Notes |
|---|---|---|---|---|
| solution_treating | 520–540 °C | water | 30-60 min | Solution heat treat for T6 temper |
| artificial_aging | 160–190 °C | air | 4-16 hours | Artificial aging after solution treatment. 170°C/8h typical for T6 |
Compatibility verdict
EN AW-6082 and A-SGM0,7: 98% composition match
Close equivalents but NOT identical.
Related materials
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.
EN AW-5052
3.3523Medium-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.
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