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C14700 Copper vs. G-CoCr28 Cobalt

C14700 copper belongs to the copper alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C14700 copper and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 9.1 to 35
6.7
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
83
Tensile Strength: Ultimate (UTS), MPa 240 to 320
560
Tensile Strength: Yield (Proof), MPa 85 to 250
260

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Maximum Temperature: Mechanical, °C 200
1200
Melting Completion (Liquidus), °C 1080
1330
Melting Onset (Solidus), °C 1070
1270
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 370
8.5
Thermal Expansion, µm/m-K 17
14

Otherwise Unclassified Properties

Base Metal Price, % relative 30
100
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 2.6
6.2
Embodied Energy, MJ/kg 41
84
Embodied Water, L/kg 310
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 65
31
Resilience: Unit (Modulus of Resilience), kJ/m3 31 to 280
160
Stiffness to Weight: Axial, points 7.2
15
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 7.3 to 10
19
Strength to Weight: Bending, points 9.5 to 12
19
Thermal Diffusivity, mm2/s 110
2.2
Thermal Shock Resistance, points 8.4 to 12
14

Alloy Composition

Carbon (C), % 0
0.050 to 0.25
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
48 to 52
Copper (Cu), % 99.395 to 99.798
0
Iron (Fe), % 0
9.7 to 24.5
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 4.0
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0.0020 to 0.0050
0 to 0.040
Silicon (Si), % 0
0.5 to 1.5
Sulfur (S), % 0.2 to 0.5
0 to 0.030
Residuals, % 0 to 0.1
0