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6262 (AlMg1SiPb, A96262) Aluminum

6262 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. 6262 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-6262. AlMg1SiPb is the EN chemical designation. And A96262 is the UNS number.

It originally received its standard designation in 1960. This material is well established: the Further Reading section below cites a number of published standards, and that list is not necessarily exhaustive.

The properties of 6262 aluminum include seven common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 6262 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

68 GPa 9.9 x 106 psi

Elongation at Break

4.6 to 10 %

Fatigue Strength

90 to 110 MPa 13 to 16 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.7 x 106 psi

Shear Strength

170 to 240 MPa 25 to 35 x 103 psi

Tensile Strength: Ultimate (UTS)

290 to 390 MPa 42 to 57 x 103 psi

Tensile Strength: Yield (Proof)

270 to 360 MPa 39 to 52 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

160 °C 330 °F

Melting Completion (Liquidus)

650 °C 1200 °F

Melting Onset (Solidus)

580 °C 1080 °F

Specific Heat Capacity

890 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

170 W/m-K 99 BTU/h-ft-°F

Thermal Expansion

23 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

44 % IACS

Electrical Conductivity: Equal Weight (Specific)

140 % IACS

Otherwise Unclassified Properties

Base Metal Price

10 % relative

Density

2.8 g/cm3 180 lb/ft3

Embodied Carbon

8.3 kg CO2/kg material

Embodied Energy

150 MJ/kg 66 x 103 BTU/lb

Embodied Water

1190 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

17 to 31 MJ/m3

Resilience: Unit (Modulus of Resilience)

530 to 940 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

48 points

Strength to Weight: Axial

29 to 39 points

Strength to Weight: Bending

35 to 42 points

Thermal Diffusivity

69 m2/s

Thermal Shock Resistance

13 to 18 points

Alloy Composition

Among wrought aluminum alloys, the composition of 6262 aluminum is notable for including lead (Pb) and bismuth (Bi). Lead is used to improve machinability at the cost of toxicity and a decrease in weldability. Bismuth is used to improve machinability at the cost of a decrease in weldability.

Aluminum (Al) 94.7 to 97.8
Magnesium (Mg) 0.8 to 1.2
Silicon (Si) 0.4 to 0.8
Lead (Pb) 0.4 to 0.7
Bismuth (Bi) 0.4 to 0.7
Iron (Fe) 0 to 0.7
Copper (Cu) 0.15 to 0.4
Zinc (Zn) 0 to 0.25
Chromium (Cr) 0.040 to 0.14
Manganese (Mn) 0 to 0.15
Titanium (Ti) 0 to 0.15
Residuals 0 to 0.15

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

ASTM B483: Standard Specification for Aluminum and Aluminum-Alloy Drawn Tube and Pipe for General Purpose Applications

ASTM B210: Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes

ASTM B211: Standard Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire

ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

EN 754-2: Aluminium and aluminium alloys. Cold drawn rod/bar and tube. Mechanical properties

EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties

Aluminum Standards and Data, Aluminum Association Inc., 2013

EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993