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C99300 Copper vs. G-CoCr28 Cobalt

C99300 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 C99300 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, % 2.0
6.7
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 46
83
Tensile Strength: Ultimate (UTS), MPa 660
560
Tensile Strength: Yield (Proof), MPa 380
260

Thermal Properties

Latent Heat of Fusion, J/g 240
320
Maximum Temperature: Mechanical, °C 250
1200
Melting Completion (Liquidus), °C 1080
1330
Melting Onset (Solidus), °C 1070
1270
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 43
8.5
Thermal Expansion, µm/m-K 17
14

Otherwise Unclassified Properties

Base Metal Price, % relative 35
100
Density, g/cm3 8.2
8.1
Embodied Carbon, kg CO2/kg material 4.5
6.2
Embodied Energy, MJ/kg 70
84
Embodied Water, L/kg 400
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
31
Resilience: Unit (Modulus of Resilience), kJ/m3 590
160
Stiffness to Weight: Axial, points 8.3
15
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 12
2.2
Thermal Shock Resistance, points 22
14

Alloy Composition

Aluminum (Al), % 10.7 to 11.5
0
Carbon (C), % 0
0.050 to 0.25
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 1.0 to 2.0
48 to 52
Copper (Cu), % 68.6 to 74.4
0
Iron (Fe), % 0.4 to 1.0
9.7 to 24.5
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 13.5 to 16.5
0 to 4.0
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.020
0.5 to 1.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.050
0
Residuals, % 0 to 0.3
0