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R31539 Cobalt vs. CR022A Copper

R31539 cobalt belongs to the cobalt alloys classification, while CR022A copper belongs to the copper 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 R31539 cobalt and the bottom bar is CR022A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 13 to 22
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
43
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
230
Tensile Strength: Yield (Proof), MPa 590 to 940
140

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1360
1090
Melting Onset (Solidus), °C 1290
1040
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
380
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
100
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
100

Otherwise Unclassified Properties

Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 110
41
Embodied Water, L/kg 530
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 190
31
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
83
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 33 to 44
7.1
Strength to Weight: Bending, points 27 to 32
9.3
Thermal Diffusivity, mm2/s 3.5
110
Thermal Shock Resistance, points 24 to 32
8.1

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
0
Antimony (Sb), % 0
0 to 0.00040
Arsenic (As), % 0
0 to 0.00050
Bismuth (Bi), % 0
0 to 0.00020
Cadmium (Cd), % 0
0 to 0.00010
Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 57.7 to 68.7
0
Copper (Cu), % 0
99.99 to 99.999
Iron (Fe), % 0 to 0.75
0 to 0.0010
Lanthanum (La), % 0.030 to 0.2
0
Lead (Pb), % 0
0 to 0.00050
Manganese (Mn), % 0 to 1.0
0 to 0.00050
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0 to 0.0010
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0.0010 to 0.0060
Selenium (Se), % 0
0 to 0.00020
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0 to 0.0025
Sulfur (S), % 0
0 to 0.0015
Tellurium (Te), % 0
0 to 0.00020
Tin (Sn), % 0
0 to 0.00020
Zinc (Zn), % 0
0 to 0.00010