MakeItFrom.com
Menu (ESC)

4007 Aluminum vs. R30012 Cobalt

4007 aluminum belongs to the aluminum alloys classification, while R30012 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 4007 aluminum and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
220
Elongation at Break, % 5.1 to 23
1.0
Fatigue Strength, MPa 46 to 88
320
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
86
Tensile Strength: Ultimate (UTS), MPa 130 to 160
830
Tensile Strength: Yield (Proof), MPa 50 to 120
650

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Melting Completion (Liquidus), °C 650
1470
Melting Onset (Solidus), °C 590
1280
Specific Heat Capacity, J/kg-K 890
440
Thermal Conductivity, W/m-K 170
15
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 140
1.8

Otherwise Unclassified Properties

Density, g/cm3 2.8
8.8
Embodied Carbon, kg CO2/kg material 8.1
8.3
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1160
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.4 to 23
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 110
960
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
23
Strength to Weight: Axial, points 12 to 15
26
Strength to Weight: Bending, points 20 to 23
22
Thermal Diffusivity, mm2/s 67
3.8
Thermal Shock Resistance, points 5.5 to 6.7
23

Alloy Composition

Aluminum (Al), % 94.1 to 97.6
0
Carbon (C), % 0
1.4 to 2.0
Chromium (Cr), % 0.050 to 0.25
27 to 32
Cobalt (Co), % 0 to 0.050
47.5 to 64.1
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0.4 to 1.0
0 to 3.0
Magnesium (Mg), % 0 to 0.2
0
Manganese (Mn), % 0.8 to 1.5
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0.15 to 0.7
0 to 3.0
Silicon (Si), % 1.0 to 1.7
0 to 2.0
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0
7.5 to 9.5
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0