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C15900 Copper vs. R30035 Cobalt

C15900 copper belongs to the copper alloys classification, while R30035 cobalt belongs to the cobalt alloys. There are 27 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 C15900 copper and the bottom bar is R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220 to 230
Elongation at Break, % 6.5
9.0 to 46
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
84 to 89
Tensile Strength: Ultimate (UTS), MPa 720
900 to 1900
Tensile Strength: Yield (Proof), MPa 240
300 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Melting Completion (Liquidus), °C 1080
1440
Melting Onset (Solidus), °C 1030
1320
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 280
11
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 48
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 49
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 30
100
Density, g/cm3 8.8
8.7
Embodied Carbon, kg CO2/kg material 2.8
10
Embodied Energy, MJ/kg 45
140
Embodied Water, L/kg 310
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
160 to 320
Resilience: Unit (Modulus of Resilience), kJ/m3 260
210 to 5920
Stiffness to Weight: Axial, points 7.2
14 to 15
Stiffness to Weight: Bending, points 18
23 to 24
Strength to Weight: Axial, points 23
29 to 61
Strength to Weight: Bending, points 20
24 to 39
Thermal Diffusivity, mm2/s 80
3.0
Thermal Shock Resistance, points 26
23 to 46

Alloy Composition

Aluminum (Al), % 0.76 to 0.84
0
Boron (B), % 0
0 to 0.015
Carbon (C), % 0.27 to 0.33
0 to 0.025
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
29.1 to 39
Copper (Cu), % 97.5 to 97.9
0
Iron (Fe), % 0 to 0.040
0 to 1.0
Manganese (Mn), % 0
0 to 0.15
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 0
33 to 37
Oxygen (O), % 0.4 to 0.54
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0.66 to 0.74
0 to 1.0