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CC381H Copper-nickel vs. R30075 Cobalt

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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