Free-machining aluminium (Pb/Bi) — high-volume turned parts, connectors, fittings.
| Property | Typical value |
|---|---|
| Density | 2820 kg/m³ |
| Yield | ~310 MPa (T3) |
| Tensile | ~380 MPa |
| Elongation | ~10 % |
| Young's E | 70 GPa |
| CTE | ~23 µm/m·K |
| Thermal cond. | ~150 W/m·K |
| Hardness | ~95 HB (T3) |
| Max service | ~150 °C |
| Poisson ν | ~0.33 |
| Shear modulus G | ~26 GPa (derived) |
| Shear strength | ~220 MPa (T3 typ) |
| Specific heat | ~860 J/kg·K |
| Elec. resistivity | ~0.044 µΩ·m (~39 %IACS, T3) |
| Melting range | ~535–640 °C |
~100% for Al. Superb chip-breaking; best Al for auto-lathe.
Not weldable (Cu/Pb). Poorer corrosion than 6xxx.
| System | Designation |
|---|---|
| EN | EN AW-2011 [Al Cu6BiPb] |
| DIN | AlCuBiPb / 3.1655 |
| AISI | AA 2011 |
| ASTM | B211 2011 |
| JIS | A2011 |
| BS | BS 1474 FC1 |
| UNS | A92011 |
Equivalents & alternatives: 2011 (UNS A92011). Alt: 6082/6061 (structural/weld), 2014.
The UK structural aluminium — frames, machined parts, marine. Best strength of the 6xxx weldables.
Aluminium (wrought)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.
