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R30605 Cobalt vs. C96700 Copper

R30605 cobalt belongs to the cobalt alloys classification, while C96700 copper belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is C96700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
140
Elongation at Break, % 34
10
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 81
53
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
1210
Tensile Strength: Yield (Proof), MPa 470 to 1600
550

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1410
1170
Melting Onset (Solidus), °C 1330
1110
Specific Heat Capacity, J/kg-K 410
400
Thermal Conductivity, W/m-K 9.6
30
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.8
Embodied Carbon, kg CO2/kg material 9.8
9.5
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 450
280

Common Calculations

Stiffness to Weight: Axial, points 12
8.9
Stiffness to Weight: Bending, points 21
20
Strength to Weight: Axial, points 33 to 55
38
Strength to Weight: Bending, points 25 to 36
29
Thermal Diffusivity, mm2/s 2.5
8.5
Thermal Shock Resistance, points 31 to 52
40

Alloy Composition


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Beryllium (Be), % 0
1.1 to 1.2
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
62.4 to 68.8
Iron (Fe), % 0 to 3.0
0.4 to 1.0
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 1.0 to 2.0
0.4 to 1.0
Nickel (Ni), % 9.0 to 11
29 to 33
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.15 to 0.35
Tungsten (W), % 14 to 16
0
Zirconium (Zr), % 0
0.15 to 0.35
Residuals, % 0
0 to 0.5