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359.0 (A03590) Cast Aluminum

359.0 aluminum is an aluminum alloy formulated for casting. 359.0 is the Aluminum Association (AA) designation for this material. A03590 is the UNS number. This material originally entered the market in 1961.

The properties of 359.0 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 359.0 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

90 to 100

Elastic (Young's, Tensile) Modulus

71 GPa 10 x 106 psi

Elongation at Break

3.8 to 4.9 %

Fatigue Strength

100 MPa 15 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

27 GPa 3.8 x 106 psi

Shear Strength

220 to 230 MPa 32 to 34 x 103 psi

Tensile Strength: Ultimate (UTS)

340 to 350 MPa 49 to 51 x 103 psi

Tensile Strength: Yield (Proof)

250 to 280 MPa 37 to 40 x 103 psi

Thermal Properties

Latent Heat of Fusion

530 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

600 °C 1110 °F

Melting Onset (Solidus)

570 °C 1060 °F

Specific Heat Capacity

910 J/kg-K 0.22 BTU/lb-°F

Thermal Conductivity

140 W/m-K 79 BTU/h-ft-°F

Thermal Expansion

21 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

35 % IACS

Electrical Conductivity: Equal Weight (Specific)

120 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.6 g/cm3 160 lb/ft3

Embodied Carbon

8.0 kg CO2/kg material

Embodied Energy

150 MJ/kg 63 x 103 BTU/lb

Embodied Water

1090 L/kg 130 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

12 to 15 MJ/m3

Resilience: Unit (Modulus of Resilience)

450 to 540 kJ/m3

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

54 points

Strength to Weight: Axial

37 to 38 points

Strength to Weight: Bending

42 to 43 points

Thermal Diffusivity

59 mm2/s

Thermal Shock Resistance

16 to 17 points

Alloy Composition

Among cast aluminum alloys, the composition of 359.0 aluminum is notable for containing a comparatively high amount of silicon (Si). Silicon is used to improve casting fluidity and lower melting temperature. It also has a strengthening effect.

Aluminum (Al) 88.9 to 91
Silicon (Si) 8.5 to 9.5
Magnesium (Mg) 0.5 to 0.7
Iron (Fe) 0 to 0.2
Titanium (Ti) 0 to 0.2
Copper (Cu) 0 to 0.2
Manganese (Mn) 0 to 0.1
Zinc (Zn) 0 to 0.1
Residuals 0 to 0.15

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

Followup Questions

Similar Alloys

Further Reading

ASTM B108: Standard Specification for Aluminum-Alloy Permanent Mold Castings

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