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CC381H Copper-nickel vs. R30012 Cobalt

CC381H copper-nickel belongs to the copper alloys classification, while R30012 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is CC381H copper-nickel and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
220
Elongation at Break, % 20
1.0
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
86
Tensile Strength: Ultimate (UTS), MPa 380
830
Tensile Strength: Yield (Proof), MPa 140
650

Thermal Properties

Latent Heat of Fusion, J/g 240
320
Melting Completion (Liquidus), °C 1180
1470
Melting Onset (Solidus), °C 1120
1280
Specific Heat Capacity, J/kg-K 410
440
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.8
Embodied Carbon, kg CO2/kg material 5.0
8.3
Embodied Energy, MJ/kg 73
120
Embodied Water, L/kg 280
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 68
960
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 12
26
Strength to Weight: Bending, points 13
22
Thermal Diffusivity, mm2/s 8.4
3.8
Thermal Shock Resistance, points 13
23

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 64.5 to 69.9
0
Iron (Fe), % 0.5 to 1.5
0 to 3.0
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 29 to 31
0 to 3.0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0 to 2.0
Sulfur (S), % 0 to 0.010
0
Tungsten (W), % 0
7.5 to 9.5
Zinc (Zn), % 0 to 0.5
0