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238.0 Aluminum vs. R04295 Alloy

238.0 aluminum belongs to the aluminum alloys classification, while R04295 alloy belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 238.0 aluminum and the bottom bar is R04295 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
100
Elongation at Break, % 1.5
22
Poisson's Ratio 0.33
0.38
Shear Modulus, GPa 28
37
Tensile Strength: Ultimate (UTS), MPa 210
410
Tensile Strength: Yield (Proof), MPa 170
300

Thermal Properties

Latent Heat of Fusion, J/g 430
300
Specific Heat Capacity, J/kg-K 840
260
Thermal Expansion, µm/m-K 21
7.2

Otherwise Unclassified Properties

Density, g/cm3 3.4
9.0
Embodied Water, L/kg 1040
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
84
Resilience: Unit (Modulus of Resilience), kJ/m3 180
430
Stiffness to Weight: Axial, points 12
6.3
Stiffness to Weight: Bending, points 42
17
Strength to Weight: Axial, points 17
13
Strength to Weight: Bending, points 23
14
Thermal Shock Resistance, points 9.1
40

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Carbon (C), % 0
0 to 0.015
Copper (Cu), % 9.5 to 10.5
0
Hafnium (Hf), % 0
9.0 to 11
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 1.0 to 1.5
0
Magnesium (Mg), % 0 to 0.25
0
Niobium (Nb), % 0
85.9 to 90.3
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Silicon (Si), % 3.6 to 4.4
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.7 to 1.3
Tungsten (W), % 0
0 to 0.5
Zinc (Zn), % 1.0 to 1.5
0
Zirconium (Zr), % 0
0 to 0.7