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R31539 Cobalt vs. CC498K Bronze

R31539 cobalt belongs to the cobalt alloys classification, while CC498K 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 R31539 cobalt and the bottom bar is CC498K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 13 to 22
14
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
41
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
260
Tensile Strength: Yield (Proof), MPa 590 to 940
130

Thermal Properties

Latent Heat of Fusion, J/g 320
190
Melting Completion (Liquidus), °C 1360
1000
Melting Onset (Solidus), °C 1290
920
Specific Heat Capacity, J/kg-K 450
370
Thermal Conductivity, W/m-K 13
73
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
10

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.8
Embodied Carbon, kg CO2/kg material 8.2
3.2
Embodied Energy, MJ/kg 110
52
Embodied Water, L/kg 530
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 190
30
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
72
Stiffness to Weight: Axial, points 15
6.9
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 33 to 44
8.1
Strength to Weight: Bending, points 27 to 32
10
Thermal Diffusivity, mm2/s 3.5
22
Thermal Shock Resistance, points 24 to 32
9.3

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
0 to 0.010
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 57.7 to 68.7
0
Copper (Cu), % 0
85 to 90
Iron (Fe), % 0 to 0.75
0 to 0.25
Lanthanum (La), % 0.030 to 0.2
0
Lead (Pb), % 0
1.0 to 2.0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0 to 1.0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
5.5 to 6.5
Zinc (Zn), % 0
3.0 to 5.0