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5182 Aluminum vs. R30008 Cobalt

5182 aluminum belongs to the aluminum alloys classification, while R30008 cobalt belongs to the cobalt alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, 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 R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
210
Elongation at Break, % 1.1 to 12
1.1 to 73
Fatigue Strength, MPa 100 to 130
320 to 530
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
83
Tensile Strength: Ultimate (UTS), MPa 280 to 420
950 to 1700
Tensile Strength: Yield (Proof), MPa 130 to 360
500 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 390
320
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 590
1330
Specific Heat Capacity, J/kg-K 900
450
Thermal Expansion, µm/m-K 24
13

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
95
Density, g/cm3 2.7
8.4
Embodied Carbon, kg CO2/kg material 8.9
8.1
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 1180
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
590 to 2720
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 29 to 44
31 to 56
Strength to Weight: Bending, points 36 to 47
25 to 37
Thermal Shock Resistance, points 12 to 19
25 to 44

Alloy Composition


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Aluminum (Al), % 93.2 to 95.8
0
Boron (B), % 0
0 to 0.0010
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.1
18.5 to 21.5
Cobalt (Co), % 0
39 to 42
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.35
7.6 to 20
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0.2 to 0.5
1.0 to 2.0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0
15 to 18
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.2
0 to 1.2
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0

Comparable Variants