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G-CoCr28 Cobalt vs. C82000 Copper

G-CoCr28 cobalt belongs to the cobalt alloys classification, while C82000 copper belongs to the copper 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 G-CoCr28 cobalt and the bottom bar is C82000 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Elongation at Break, % 6.7
8.0 to 20
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 83
45
Tensile Strength: Ultimate (UTS), MPa 560
350 to 690
Tensile Strength: Yield (Proof), MPa 260
140 to 520

Thermal Properties

Latent Heat of Fusion, J/g 320
220
Maximum Temperature: Mechanical, °C 1200
220
Melting Completion (Liquidus), °C 1330
1090
Melting Onset (Solidus), °C 1270
970
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 8.5
260
Thermal Expansion, µm/m-K 14
17

Otherwise Unclassified Properties

Base Metal Price, % relative 100
60
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 6.2
5.0
Embodied Energy, MJ/kg 84
77
Embodied Water, L/kg 440
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
51 to 55
Resilience: Unit (Modulus of Resilience), kJ/m3 160
80 to 1120
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 19
11 to 22
Strength to Weight: Bending, points 19
12 to 20
Thermal Diffusivity, mm2/s 2.2
76
Thermal Shock Resistance, points 14
12 to 24

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Beryllium (Be), % 0
0.45 to 0.8
Carbon (C), % 0.050 to 0.25
0
Chromium (Cr), % 27 to 30
0 to 0.1
Cobalt (Co), % 48 to 52
2.2 to 2.7
Copper (Cu), % 0
95.2 to 97.4
Iron (Fe), % 9.7 to 24.5
0 to 0.1
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
0 to 0.2
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.5 to 1.5
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5