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5252 (AlMg2.5(B), A95252) Aluminum

5252 aluminum is a 5000-series aluminum alloy: the main alloying addition is magnesium, and it is formulated for primary forming into wrought products. 5252 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-5252. A95252 is the UNS number. Additionally, the EN chemical designation is AlMg2,5(B).

It originally received its standard designation in 1961.

The properties of 5252 aluminum include four 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 5252 aluminum to: 5000-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

Brinell Hardness

68 to 75

Elastic (Young's, Tensile) Modulus

68 GPa 9.8 x 106 psi

Elongation at Break

4.5 to 11 %

Fatigue Strength

100 to 110 MPa 15 to 16 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

25 GPa 3.7 x 106 psi

Shear Strength

140 to 160 MPa 20 to 23 x 103 psi

Tensile Strength: Ultimate (UTS)

230 to 290 MPa 33 to 42 x 103 psi

Tensile Strength: Yield (Proof)

170 to 240 MPa 25 to 35 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

180 °C 360 °F

Melting Completion (Liquidus)

650 °C 1200 °F

Melting Onset (Solidus)

610 °C 1120 °F

Specific Heat Capacity

910 J/kg-K 0.22 BTU/lb-°F

Thermal Conductivity

140 W/m-K 80 BTU/h-ft-°F

Thermal Expansion

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

34 % IACS

Electrical Conductivity: Equal Weight (Specific)

120 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

8.7 kg CO2/kg material

Embodied Energy

160 MJ/kg 67 x 103 BTU/lb

Embodied Water

1190 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

12 to 23 MJ/m3

Resilience: Unit (Modulus of Resilience)

210 to 430 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

51 points

Strength to Weight: Axial

23 to 30 points

Strength to Weight: Bending

31 to 36 points

Thermal Diffusivity

57 mm2/s

Thermal Shock Resistance

10 to 13 points

Alloy Composition

Among wrought aluminum alloys, the composition of 5252 aluminum is notable for including vanadium (V) and containing a comparatively high amount of magnesium (Mg). Vanadium is used to reduce grain size and increase recrystallization temperature. Magnesium promotes hardenability through both heat treatment and strain hardening mechanisms. It also increases susceptibility to intergranular corrosion.

Aluminum (Al) 96.6 to 97.8
Magnesium (Mg) 2.2 to 2.8
Manganese (Mn) 0 to 0.1
Iron (Fe) 0 to 0.1
Copper (Cu) 0 to 0.1
Silicon (Si) 0 to 0.080
Zinc (Zn) 0 to 0.050
Vanadium (V) 0 to 0.050
Residuals 0 to 0.1

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

Followup Questions

Similar Alloys

Further Reading

ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

Aluminum Standards and Data, Aluminum Association Inc., 2013

ASM Specialty Handbook: Aluminum and Aluminum Alloys, J. R. Davis (editor), 1993

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