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EN AC-42100-T64 Cast Aluminum

EN AC-42100-T64 is EN AC-42100 aluminum in the T64 temper. To achieve this temper, the metal is solution heat-treated and artificially underaged. The degree of underaging is different from T61 and T65.

The graph bars on the material properties cards below compare EN AC-42100-T64 to: Euronorm (EN) 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

91

Elastic (Young's, Tensile) Modulus

70 GPa 10 x 106 psi

Elongation at Break

9.0 %

Fatigue Strength

82 MPa 12 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Tensile Strength: Ultimate (UTS)

280 MPa 41 x 103 psi

Tensile Strength: Yield (Proof)

210 MPa 30 x 103 psi

Thermal Properties

Latent Heat of Fusion

500 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

610 °C 1130 °F

Melting Onset (Solidus)

600 °C 1120 °F

Specific Heat Capacity

910 J/kg-K 0.22 BTU/lb-°F

Thermal Conductivity

150 W/m-K 89 BTU/h-ft-°F

Thermal Expansion

22 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

41 % IACS

Electrical Conductivity: Equal Weight (Specific)

140 % 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 64 x 103 BTU/lb

Embodied Water

1110 L/kg 130 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

23 MJ/m3

Resilience: Unit (Modulus of Resilience)

300 kJ/m3

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

53 points

Strength to Weight: Axial

30 points

Strength to Weight: Bending

37 points

Thermal Diffusivity

66 mm2/s

Thermal Shock Resistance

13 points

Alloy Composition

Aluminum (Al)Al 91.3 to 93.3
Silicon (Si)Si 6.5 to 7.5
Magnesium (Mg)Mg 0.25 to 0.45
Titanium (Ti)Ti 0 to 0.25
Iron (Fe)Fe 0 to 0.19
Manganese (Mn)Mn 0 to 0.1
Zinc (Zn)Zn 0 to 0.070
Copper (Cu)Cu 0 to 0.050
Residualsres. 0 to 0.1

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

Followup Questions

Further Reading

EN 1706: Aluminium and aluminium alloys. Castings. Chemical composition and mechanical properties

Handbook of Aluminum Bonding Technology and Data, J. D. Minford, 1993