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R30012 Cobalt vs. CC481K Bronze

R30012 cobalt belongs to the cobalt alloys classification, while CC481K bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R30012 cobalt and the bottom bar is CC481K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 1.0
4.5
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 86
40
Tensile Strength: Ultimate (UTS), MPa 830
350
Tensile Strength: Yield (Proof), MPa 650
180

Thermal Properties

Latent Heat of Fusion, J/g 320
190
Melting Completion (Liquidus), °C 1470
1000
Melting Onset (Solidus), °C 1280
880
Specific Heat Capacity, J/kg-K 440
370
Thermal Conductivity, W/m-K 15
64
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
10
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
10

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.7
Embodied Carbon, kg CO2/kg material 8.3
3.7
Embodied Energy, MJ/kg 120
60
Embodied Water, L/kg 480
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.7
13
Resilience: Unit (Modulus of Resilience), kJ/m3 960
150
Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 26
11
Strength to Weight: Bending, points 22
13
Thermal Diffusivity, mm2/s 3.8
20
Thermal Shock Resistance, points 23
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.050
Carbon (C), % 1.4 to 2.0
0
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 47.5 to 64.1
0
Copper (Cu), % 0
87 to 89.5
Iron (Fe), % 0 to 3.0
0 to 0.1
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0
0 to 0.050
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0 to 0.1
Phosphorus (P), % 0
0 to 1.0
Silicon (Si), % 0 to 2.0
0 to 0.010
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
10 to 11.5
Tungsten (W), % 7.5 to 9.5
0
Zinc (Zn), % 0
0 to 0.5