MakeItFrom.com
Menu (ESC)

C18200 Copper vs. R31233 Cobalt

C18200 copper belongs to the copper alloys classification, while R31233 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 C18200 copper and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 11 to 40
17
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
85
Tensile Strength: Ultimate (UTS), MPa 310 to 530
1020
Tensile Strength: Yield (Proof), MPa 97 to 450
420

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Melting Completion (Liquidus), °C 1080
1350
Melting Onset (Solidus), °C 1070
1330
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 320
12
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 81
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.6
Embodied Carbon, kg CO2/kg material 2.6
8.4
Embodied Energy, MJ/kg 41
110
Embodied Water, L/kg 310
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 96
140
Resilience: Unit (Modulus of Resilience), kJ/m3 40 to 860
410
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 9.6 to 16
33
Strength to Weight: Bending, points 11 to 16
26
Thermal Diffusivity, mm2/s 93
3.2
Thermal Shock Resistance, points 11 to 18
25

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0
0.020 to 0.1
Chromium (Cr), % 0.6 to 1.2
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Copper (Cu), % 98.6 to 99.4
0
Iron (Fe), % 0 to 0.1
1.0 to 5.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0.1 to 1.5
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0.050 to 1.0
Sulfur (S), % 0
0 to 0.020
Tungsten (W), % 0
1.0 to 3.0