6182 (AlSi1MgZr, A96182) Aluminum
6182 aluminum is a 6000-series aluminum alloy: there is significant alloying with both magnesium and silicon, and the alloy is formulated for primary forming into wrought products. 6182 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-6182. AlSi1MgZr is the EN chemical designation. And A96182 is the UNS number.
It received its standard designation in 2005, making it a fairly young material.
The properties of 6182 aluminum include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 6182 aluminum to: 6000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
70 GPa 10 x 106 psi
Elongation at Break
6.8 to 13 %
Fatigue Strength
63 to 99 MPa 9.2 to 14 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
26 GPa 3.8 x 106 psi
Shear Strength
140 to 190 MPa 20 to 27 x 103 psi
Tensile Strength: Ultimate (UTS)
230 to 320 MPa 33 to 46 x 103 psi
Tensile Strength: Yield (Proof)
130 to 270 MPa 18 to 39 x 103 psi
Thermal Properties
Latent Heat of Fusion
410 J/g
Maximum Temperature: Mechanical
190 °C 370 °F
Melting Completion (Liquidus)
640 °C 1190 °F
Melting Onset (Solidus)
600 °C 1110 °F
Specific Heat Capacity
900 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
160 W/m-K 92 BTU/h-ft-°F
Thermal Expansion
23 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
40 % IACS
Electrical Conductivity: Equal Weight (Specific)
130 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Density
2.7 g/cm3 170 lb/ft3
Embodied Carbon
8.4 kg CO2/kg material
Embodied Energy
150 MJ/kg 66 x 103 BTU/lb
Embodied Water
1170 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
21 to 26 MJ/m3
Resilience: Unit (Modulus of Resilience)
110 to 520 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
50 points
Strength to Weight: Axial
23 to 32 points
Strength to Weight: Bending
30 to 38 points
Thermal Diffusivity
65 mm2/s
Thermal Shock Resistance
10 to 14 points
Alloy Composition
Among wrought aluminum alloys, the composition of 6182 aluminum is notable for containing a comparatively high amount of silicon (Si) and including zirconium (Zr). Silicon is used to increase strength at the expense of ductility. It also lowers the melting temperature and raises the fluidity of the alloy. Zirconium is used to increase an alloy's recrystallization temperature, which increases the temperature at which the alloy can be used without permanent loss of mechanical properties.
| Al | 95 to 97.9 | |
| Si | 0.9 to 1.3 | |
| Mg | 0.7 to 1.2 | |
| Mn | 0.5 to 1.0 | |
| Fe | 0 to 0.5 | |
| Cr | 0 to 0.25 | |
| Zr | 0.050 to 0.2 | |
| Zn | 0 to 0.2 | |
| Ti | 0 to 0.1 | |
| Cu | 0 to 0.1 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
Handbook of Aluminum vol. 2: Alloy Production and Materials Manufacturing, George Totten and D. Scott MacKenzie (editors), 2003
EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties
EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015