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5182 Aluminum vs. R30605 Cobalt

5182 aluminum belongs to the aluminum alloys classification, while R30605 cobalt belongs to the cobalt alloys. There are 25 material properties with values for both materials. Properties with values for just one material (5, 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 5182 aluminum and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
210
Elongation at Break, % 1.1 to 12
34
Fatigue Strength, MPa 100 to 130
260 to 590
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
81
Tensile Strength: Ultimate (UTS), MPa 280 to 420
1130 to 1900
Tensile Strength: Yield (Proof), MPa 130 to 360
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 590
1330
Specific Heat Capacity, J/kg-K 900
410
Thermal Conductivity, W/m-K 130
9.6
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 94
1.8

Otherwise Unclassified Properties

Density, g/cm3 2.7
9.6
Embodied Carbon, kg CO2/kg material 8.9
9.8
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1180
450

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 51
21
Strength to Weight: Axial, points 29 to 44
33 to 55
Strength to Weight: Bending, points 36 to 47
25 to 36
Thermal Diffusivity, mm2/s 53
2.5
Thermal Shock Resistance, points 12 to 19
31 to 52

Alloy Composition

Aluminum (Al), % 93.2 to 95.8
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0 to 0.1
19 to 21
Cobalt (Co), % 0
46.4 to 57
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.35
0 to 3.0
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0.2 to 0.5
1.0 to 2.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0

Comparable Variants