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B535.0 (B535.0-F, A25350) Cast Aluminum

B535.0 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. B535.0 is the Aluminum Association (AA) designation for this material. A25350 is the UNS number.

The graph bars on the material properties cards below compare B535.0 aluminum to: ANSI/AA cast aluminums (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

65

Elastic (Young's, Tensile) Modulus

66 GPa 9.6 x 106 psi

Elongation at Break

10 %

Fatigue Strength

62 MPa 9.0 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

25 GPa 3.6 x 106 psi

Shear Strength

210 MPa 30 x 103 psi

Tensile Strength: Ultimate (UTS)

260 MPa 38 x 103 psi

Tensile Strength: Yield (Proof)

130 MPa 19 x 103 psi

Thermal Properties

Latent Heat of Fusion

390 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

630 °C 1170 °F

Melting Onset (Solidus)

550 °C 1020 °F

Specific Heat Capacity

910 J/kg-K 0.22 BTU/lb-°F

Thermal Conductivity

96 W/m-K 56 BTU/h-ft-°F

Thermal Expansion

25 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

24 % IACS

Electrical Conductivity: Equal Weight (Specific)

82 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.6 g/cm3 160 lb/ft3

Embodied Carbon

9.4 kg CO2/kg material

Embodied Energy

160 MJ/kg 67 x 103 BTU/lb

Embodied Water

1180 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

22 MJ/m3

Resilience: Unit (Modulus of Resilience)

130 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

51 points

Strength to Weight: Axial

28 points

Strength to Weight: Bending

35 points

Thermal Diffusivity

40 mm2/s

Thermal Shock Resistance

11 points

Alloy Composition

Among cast aluminum alloys, the composition of B535.0 aluminum is notable for containing a comparatively high amount of magnesium (Mg). Magnesium promotes hardenability through both heat treatment and strain hardening mechanisms. It also increases susceptibility to intergranular corrosion.

Aluminum (Al) 91.7 to 93.4
Magnesium (Mg) 6.5 to 7.5
Titanium (Ti) 0.1 to 0.25
Silicon (Si) 0 to 0.15
Iron (Fe) 0 to 0.15
Copper (Cu) 0 to 0.1
Manganese (Mn) 0 to 0.050
Residuals 0 to 0.15

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

Followup Questions

Similar Alloys

Further Reading

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

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015