A242.0 (A242.0-T75, A12420) Cast Aluminum
Cast Aluminum Alloys
Property Overview
Density3.1g/cm³
Elastic Modulus73GPa
Tensile Strength220MPa
Yield StrengthUnknown
Brinell Hardness75HB
Maximum Service Temperature210°C
Chemical Composition
CR
0.15 to 0.25%
NI
1.8 to 2.3%
MN
0 to 0.1%
SI
0 to 0.6%
CU
3.7 to 4.5%
TI
0.070 to 0.2%
AL
89.3 to 93.1%
MG
1.2 to 1.7%
RES.
Residuals res. | | 0 to 0.15%
RESIDUALS RES.
0 to 0.15%
ZN
0 to 0.1%
FE
0 to 0.8%
Mechanical
Elastic (Young's, Tensile) Modulus
73 GPa
Elongation at Break
1.6 %
Poisson's Ratio
0.33
Shear Modulus
27 GPa
Tensile Strength: Ultimate (UTS)
220 MPa
Hardness
Brinell Hardness
75
Physical
Density
3.1 g/cm 3
Thermal
Latent Heat of Fusion
390 J/g
Maximum Temperature: Mechanical
210 °C
Melting Completion (Liquidus)
680 °C
Melting Onset (Solidus)
550 °C
Specific Heat Capacity
870 J/kg-K
Thermal Conductivity
140 W/m-K
Thermal Diffusivity
52 mm 2 /s
Thermal Expansion
23 µm/m-K
Thermal Shock Resistance
9.3 points
Electrical
Electrical Conductivity: Equal Volume
37 % IACS
Electrical Conductivity: Equal Weight (Specific)
110 % IACS
Calculated
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
45 points
Strength to Weight: Axial
20 points
Strength to Weight: Bending
26 points
Environmental
Base Metal Price
12 % relative
Embodied Carbon
8.3 kg CO 2 /kg material
Embodied Energy
150 MJ/kg
Embodied Energy
150 MJ/kg 64 x 10 3 BTU/lb
Embodied Water
1130 L/kg
Embodied Water
1130 L/kg 130 gal/lb
Registered Designations & Aliases
A12420A242.0 (A242.0-T75, A12420) Cast AluminumA242.0-T75
Standards
ASTM B26 ASTM B26: Standard Specification for Aluminum-Alloy Sand Castings
ASTM B26 ASTM B26: Standard Specification for Aluminum-Alloy Sand Castings Handbook of Aluminum Bonding Technology and Data, J. D. Minford, 1993 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993