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238.0 Aluminum vs. C355.0 Aluminum

Both 238.0 aluminum and C355.0 aluminum are aluminum alloys. They have 89% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 238.0 aluminum and the bottom bar is C355.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
70
Elongation at Break, % 1.5
2.7 to 3.8
Fatigue Strength, MPa 110
76 to 84
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Tensile Strength: Ultimate (UTS), MPa 210
290 to 310
Tensile Strength: Yield (Proof), MPa 170
200 to 230

Thermal Properties

Latent Heat of Fusion, J/g 430
470
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 600
620
Melting Onset (Solidus), °C 510
570
Specific Heat Capacity, J/kg-K 840
900
Thermal Conductivity, W/m-K 100
150
Thermal Expansion, µm/m-K 21
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
39
Electrical Conductivity: Equal Weight (Specific), % IACS 67
130

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 3.4
2.7
Embodied Carbon, kg CO2/kg material 7.4
8.0
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
7.5 to 9.8
Resilience: Unit (Modulus of Resilience), kJ/m3 180
290 to 380
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 42
51
Strength to Weight: Axial, points 17
30 to 32
Strength to Weight: Bending, points 23
36 to 37
Thermal Diffusivity, mm2/s 37
60
Thermal Shock Resistance, points 9.1
13 to 14

Alloy Composition


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Aluminum (Al), % 81.9 to 84.9
91.7 to 94.1
Copper (Cu), % 9.5 to 10.5
1.0 to 1.5
Iron (Fe), % 1.0 to 1.5
0 to 0.2
Magnesium (Mg), % 0 to 0.25
0.4 to 0.6
Manganese (Mn), % 0
0 to 0.1
Silicon (Si), % 3.6 to 4.4
4.5 to 5.5
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 1.0 to 1.5
0 to 0.1
Residuals, % 0
0 to 0.15