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R30006 Cobalt vs. C87200 Bronze

R30006 cobalt belongs to the cobalt alloys classification, while C87200 bronze belongs to the copper alloys. There are 26 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 R30006 cobalt and the bottom bar is C87200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 1.0
30
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 900
380
Tensile Strength: Yield (Proof), MPa 540
170

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1400
970
Melting Onset (Solidus), °C 1290
860
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 15
28
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
6.3

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.6
Embodied Carbon, kg CO2/kg material 7.8
2.7
Embodied Energy, MJ/kg 110
44
Embodied Water, L/kg 500
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
93
Resilience: Unit (Modulus of Resilience), kJ/m3 670
130
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 29
12
Strength to Weight: Bending, points 24
14
Thermal Diffusivity, mm2/s 3.9
8.0
Thermal Shock Resistance, points 26
14

Alloy Composition

Aluminum (Al), % 0
0 to 1.5
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
89 to 99
Iron (Fe), % 0 to 3.0
0 to 2.5
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0
0 to 0.5
Silicon (Si), % 0 to 2.0
1.0 to 5.0
Tin (Sn), % 0
0 to 1.0
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
0 to 5.0