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R30605 Cobalt vs. C93400 Bronze

R30605 cobalt belongs to the cobalt alloys classification, while C93400 bronze belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is C93400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
100
Elongation at Break, % 34
9.1
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 81
38
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
270
Tensile Strength: Yield (Proof), MPa 470 to 1600
150

Thermal Properties

Latent Heat of Fusion, J/g 290
180
Melting Completion (Liquidus), °C 1410
950
Melting Onset (Solidus), °C 1330
850
Specific Heat Capacity, J/kg-K 410
350
Thermal Conductivity, W/m-K 9.6
58
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
12
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
12

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.9
Embodied Carbon, kg CO2/kg material 9.8
3.3
Embodied Energy, MJ/kg 140
54
Embodied Water, L/kg 450
380

Common Calculations

Stiffness to Weight: Axial, points 12
6.3
Stiffness to Weight: Bending, points 21
17
Strength to Weight: Axial, points 33 to 55
8.3
Strength to Weight: Bending, points 25 to 36
10
Thermal Diffusivity, mm2/s 2.5
18
Thermal Shock Resistance, points 31 to 52
10

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.5
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
82 to 85
Iron (Fe), % 0 to 3.0
0 to 0.2
Lead (Pb), % 0
7.0 to 9.0
Manganese (Mn), % 1.0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 1.5
Silicon (Si), % 0 to 0.4
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.080
Tin (Sn), % 0
7.0 to 9.0
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 1.0