MakeItFrom.com
Menu (ESC)

EN AC-44100 Aluminum vs. R30021 Cobalt

EN AC-44100 aluminum belongs to the aluminum alloys classification, while R30021 cobalt belongs to the cobalt alloys. There are 27 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 EN AC-44100 aluminum and the bottom bar is R30021 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
220
Elongation at Break, % 4.9
9.0
Fatigue Strength, MPa 64
250
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
86
Tensile Strength: Ultimate (UTS), MPa 180
700
Tensile Strength: Yield (Proof), MPa 87
500

Thermal Properties

Latent Heat of Fusion, J/g 570
330
Melting Completion (Liquidus), °C 590
1350
Melting Onset (Solidus), °C 580
1190
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 21
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.1

Otherwise Unclassified Properties

Density, g/cm3 2.5
8.4
Embodied Carbon, kg CO2/kg material 7.7
8.0
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 1050
520

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.1
57
Resilience: Unit (Modulus of Resilience), kJ/m3 53
570
Stiffness to Weight: Axial, points 16
15
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 27
21
Thermal Diffusivity, mm2/s 58
3.8
Thermal Shock Resistance, points 8.2
21

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 452
Aluminum (Al), % 84.4 to 89.5
0
Carbon (C), % 0
0.2 to 0.35
Chromium (Cr), % 0
26 to 29
Cobalt (Co), % 0
61.7 to 67.3
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.65
0 to 3.0
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.55
0
Molybdenum (Mo), % 0
4.5 to 6.0
Nickel (Ni), % 0 to 0.1
2.0 to 3.0
Silicon (Si), % 10.5 to 13.5
0 to 1.5
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0