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R30016 Cobalt vs. C93700 Bronze

R30016 cobalt belongs to the cobalt alloys classification, while C93700 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is C93700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 1600
210
Elastic (Young's, Tensile) Modulus, GPa 220
99
Elongation at Break, % 8.4
20
Fatigue Strength, MPa 290
90
Impact Strength: V-Notched Charpy, J 8.0
15
Poisson's Ratio 0.28
0.35
Shear Modulus, GPa 85
37
Tensile Strength: Ultimate (UTS), MPa 1010
240
Tensile Strength: Yield (Proof), MPa 580
130

Thermal Properties

Latent Heat of Fusion, J/g 320
170
Melting Completion (Liquidus), °C 1360
930
Melting Onset (Solidus), °C 1270
760
Specific Heat Capacity, J/kg-K 450
350
Thermal Conductivity, W/m-K 15
47
Thermal Expansion, µm/m-K 14
19

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.9
Embodied Carbon, kg CO2/kg material 7.7
3.5
Embodied Energy, MJ/kg 110
57
Embodied Water, L/kg 500
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
40
Resilience: Unit (Modulus of Resilience), kJ/m3 770
79
Stiffness to Weight: Axial, points 14
6.2
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 33
7.5
Strength to Weight: Bending, points 26
9.6
Thermal Diffusivity, mm2/s 3.9
15
Thermal Shock Resistance, points 24
9.4

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.5
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
78 to 82
Iron (Fe), % 0 to 3.0
0 to 0.15
Lead (Pb), % 0
8.0 to 11
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 1.5
Silicon (Si), % 0.2 to 2.0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
9.0 to 11
Tungsten (W), % 3.5 to 5.5
0
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 1.0