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C82200 Copper vs. R30008 Cobalt

C82200 copper belongs to the copper alloys classification, while R30008 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C82200 copper and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 8.0 to 20
1.1 to 73
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
83
Tensile Strength: Ultimate (UTS), MPa 390 to 660
950 to 1700
Tensile Strength: Yield (Proof), MPa 210 to 520
500 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 220
320
Melting Completion (Liquidus), °C 1080
1400
Melting Onset (Solidus), °C 1040
1330
Specific Heat Capacity, J/kg-K 390
450
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
95
Density, g/cm3 8.9
8.4
Embodied Carbon, kg CO2/kg material 4.8
8.1
Embodied Energy, MJ/kg 74
110
Embodied Water, L/kg 310
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1130
590 to 2720
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 12 to 20
31 to 56
Strength to Weight: Bending, points 13 to 19
25 to 37
Thermal Shock Resistance, points 14 to 23
25 to 44

Alloy Composition

Beryllium (Be), % 0.35 to 0.8
0
Boron (B), % 0
0 to 0.0010
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
18.5 to 21.5
Cobalt (Co), % 0 to 0.3
39 to 42
Copper (Cu), % 97.4 to 98.7
0
Iron (Fe), % 0
7.6 to 20
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 1.0 to 2.0
15 to 18
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 1.2
Sulfur (S), % 0
0 to 0.015
Residuals, % 0 to 0.5
0