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R30016 Cobalt vs. C94500 Bronze

R30016 cobalt belongs to the cobalt alloys classification, while C94500 bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is C94500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
92
Elongation at Break, % 8.4
12
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 85
34
Tensile Strength: Ultimate (UTS), MPa 1010
170
Tensile Strength: Yield (Proof), MPa 580
83

Thermal Properties

Latent Heat of Fusion, J/g 320
160
Melting Completion (Liquidus), °C 1360
940
Melting Onset (Solidus), °C 1270
800
Specific Heat Capacity, J/kg-K 450
330
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 14
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
9.7

Otherwise Unclassified Properties

Density, g/cm3 8.5
9.3
Embodied Carbon, kg CO2/kg material 7.7
3.2
Embodied Energy, MJ/kg 110
51
Embodied Water, L/kg 500
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
17
Resilience: Unit (Modulus of Resilience), kJ/m3 770
37
Stiffness to Weight: Axial, points 14
5.5
Stiffness to Weight: Bending, points 24
16
Strength to Weight: Axial, points 33
5.2
Strength to Weight: Bending, points 26
7.4
Thermal Diffusivity, mm2/s 3.9
17
Thermal Shock Resistance, points 24
6.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.8
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
66.7 to 78
Iron (Fe), % 0 to 3.0
0 to 0.15
Lead (Pb), % 0
16 to 22
Manganese (Mn), % 0.5 to 2.0
0
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0.2 to 2.0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
6.0 to 8.0
Tungsten (W), % 3.5 to 5.5
0
Zinc (Zn), % 0
0 to 1.2