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R31233 Cobalt vs. C95200 Bronze

R31233 cobalt belongs to the cobalt alloys classification, while C95200 bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is R31233 cobalt and the bottom bar is C95200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 17
29
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 85
42
Tensile Strength: Ultimate (UTS), MPa 1020
520
Tensile Strength: Yield (Proof), MPa 420
190

Thermal Properties

Latent Heat of Fusion, J/g 320
230
Melting Completion (Liquidus), °C 1350
1050
Melting Onset (Solidus), °C 1330
1040
Specific Heat Capacity, J/kg-K 440
430
Thermal Conductivity, W/m-K 12
50
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
12

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.3
Embodied Carbon, kg CO2/kg material 8.4
3.0
Embodied Energy, MJ/kg 110
50
Embodied Water, L/kg 480
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
120
Resilience: Unit (Modulus of Resilience), kJ/m3 410
170
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 33
17
Strength to Weight: Bending, points 26
17
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 25
19

Alloy Composition

Aluminum (Al), % 0
8.5 to 9.5
Boron (B), % 0 to 0.015
0
Carbon (C), % 0.020 to 0.1
0
Chromium (Cr), % 23.5 to 27.5
0
Cobalt (Co), % 44.7 to 63.3
0
Copper (Cu), % 0
86 to 89
Iron (Fe), % 1.0 to 5.0
2.5 to 4.0
Manganese (Mn), % 0.1 to 1.5
0
Molybdenum (Mo), % 4.0 to 6.0
0
Nickel (Ni), % 7.0 to 11
0
Nitrogen (N), % 0.030 to 0.12
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.050 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Tungsten (W), % 1.0 to 3.0
0
Residuals, % 0
0 to 1.0