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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.

Aluminum (Al)Al 95 to 97.9
Silicon (Si)Si 0.9 to 1.3
Magnesium (Mg)Mg 0.7 to 1.2
Manganese (Mn)Mn 0.5 to 1.0
Iron (Fe)Fe 0 to 0.5
Chromium (Cr)Cr 0 to 0.25
Zirconium (Zr)Zr 0.050 to 0.2
Zinc (Zn)Zn 0 to 0.2
Titanium (Ti)Ti 0 to 0.1
Copper (Cu)Cu 0 to 0.1
Residualsres. 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