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CR012A Copper vs. G-CoCr28 Cobalt

CR012A 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 (3, in this case) are not shown.

For each property being compared, the top bar is CR012A 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, % 15
6.7
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
83
Tensile Strength: Ultimate (UTS), MPa 220
560
Tensile Strength: Yield (Proof), MPa 130
260

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Maximum Temperature: Mechanical, °C 200
1200
Melting Completion (Liquidus), °C 1090
1330
Melting Onset (Solidus), °C 1040
1270
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 390
8.5
Thermal Expansion, µm/m-K 17
14

Otherwise Unclassified Properties

Base Metal Price, % relative 33
100
Density, g/cm3 9.0
8.1
Embodied Carbon, kg CO2/kg material 2.7
6.2
Embodied Energy, MJ/kg 42
84
Embodied Water, L/kg 360
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
31
Resilience: Unit (Modulus of Resilience), kJ/m3 76
160
Stiffness to Weight: Axial, points 7.2
15
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 6.8
19
Strength to Weight: Bending, points 9.0
19
Thermal Diffusivity, mm2/s 110
2.2
Thermal Shock Resistance, points 7.8
14

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0.050 to 0.25
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
48 to 52
Copper (Cu), % 99.85 to 99.94
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
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.5 to 1.5
Silver (Ag), % 0.060 to 0.080
0
Sulfur (S), % 0
0 to 0.030