The UK structural aluminium — frames, machined parts, marine. Best strength of the 6xxx weldables.
| Property | Typical value |
|---|---|
| Density | 2700 kg/m³ |
| Yield | 250–280 MPa |
| Tensile | 290–340 MPa |
| Elongation | ~9 % |
| Young's E | 70 GPa |
| Hardness | ~95 HB |
| CTE | ~23 µm/m·K |
| Thermal cond. | ~170 W/m·K |
| Max service | ~150 °C |
| Poisson ν | ~0.33 |
| Shear modulus G | ~26 GPa (derived — matches published 26 GPa) |
| Shear strength | ~210 MPa (T6 typ) |
| Specific heat | ~900 J/kg·K |
| Elec. resistivity | ~0.039 µΩ·m (~44 %IACS, T6) |
| Melting range | ~575–650 °C |
| Fatigue (indicative) | no endurance limit — design from S-N data; ≈ 6061-T6 (~96 MPa at 5×10⁸ cycles) — rotating-bend, polished specimen; indicative only, surface/size/loading factors apply |
~90%. Sharp tooling, high speed; can build up on edge — polished flutes.
Weldable (MIG/TIG, 4043/5356 filler); ~40% strength loss in HAZ — re-check joints.
| System | Designation |
|---|---|
| EN | EN AW-6082 [Al Si1MgMn] |
| DIN | AlMgSi1 / 3.2315 |
| AISI | AA 6082 (≈6061 nearest US) |
| ASTM | ≈B221 6061 (6082 not in ASTM) |
| JIS | ≈A6061 / A6N01 (no direct A6082) |
| BS | BS 1474 HE30 / H30 |
| UNS | A96082 |
Equivalents & alternatives: 6082 (HE30); 6061 (near equivalent, US). Alt: 6061-T6, 5083 (marine/weld), 7075 (higher strength).
General-purpose heat-treatable aluminium (US-origin) — very similar to 6082, widely stocked.
Aluminium (wrought)Highest-strength common aluminium (Al-Zn) — aerospace, tooling, jigs. Not for welding/marine.
Aluminium (wrought)Non-heat-treatable Al-Mg — marine, hulls, tanks. Best-in-class corrosion + weldability.
Aluminium (wrought)Free-machining aluminium (Pb/Bi) — high-volume turned parts, connectors, fittings.
