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R30075 Cobalt vs. CC381H Copper-nickel

R30075 cobalt belongs to the cobalt alloys classification, while CC381H copper-nickel belongs to the copper alloys. There are 26 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 R30075 cobalt and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210 to 250
140
Elongation at Break, % 12
20
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 82 to 98
52
Tensile Strength: Ultimate (UTS), MPa 780 to 1280
380
Tensile Strength: Yield (Proof), MPa 480 to 840
140

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Melting Completion (Liquidus), °C 1360
1180
Melting Onset (Solidus), °C 1290
1120
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 13
30
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
6.9

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 8.1
5.0
Embodied Energy, MJ/kg 110
73
Embodied Water, L/kg 530
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 140
60
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1410
68
Stiffness to Weight: Axial, points 14 to 17
8.6
Stiffness to Weight: Bending, points 24 to 25
19
Strength to Weight: Axial, points 26 to 42
12
Strength to Weight: Bending, points 22 to 31
13
Thermal Diffusivity, mm2/s 3.5
8.4
Thermal Shock Resistance, points 21 to 29
13

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.010
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.35
0 to 0.030
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 58.7 to 68
0
Copper (Cu), % 0
64.5 to 69.9
Iron (Fe), % 0 to 0.75
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 1.0
0.6 to 1.2
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 0.5
29 to 31
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.020
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0 to 0.2
0
Zinc (Zn), % 0
0 to 0.5