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R30016 Cobalt vs. C12900 Copper

R30016 cobalt belongs to the cobalt alloys classification, while C12900 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is C12900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 8.4
2.8 to 50
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 1010
220 to 420
Tensile Strength: Yield (Proof), MPa 580
75 to 380

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1360
1080
Melting Onset (Solidus), °C 1270
1030
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 15
380
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
98
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
98

Otherwise Unclassified Properties

Density, g/cm3 8.5
9.0
Embodied Carbon, kg CO2/kg material 7.7
2.6
Embodied Energy, MJ/kg 110
41
Embodied Water, L/kg 500
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
11 to 88
Resilience: Unit (Modulus of Resilience), kJ/m3 770
24 to 640
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 33
6.8 to 13
Strength to Weight: Bending, points 26
9.1 to 14
Thermal Diffusivity, mm2/s 3.9
110
Thermal Shock Resistance, points 24
7.8 to 15

Alloy Composition

Antimony (Sb), % 0
0 to 0.0030
Arsenic (As), % 0
0 to 0.012
Bismuth (Bi), % 0
0 to 0.0030
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 49.6 to 66.9
0
Copper (Cu), % 0
99.88 to 100
Iron (Fe), % 0 to 3.0
0
Lead (Pb), % 0
0 to 0.0040
Manganese (Mn), % 0.5 to 2.0
0
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
0 to 0.050
Silicon (Si), % 0.2 to 2.0
0
Silver (Ag), % 0
0 to 0.054
Tellurium (Te), % 0
0 to 0.025
Tungsten (W), % 3.5 to 5.5
0