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C12200 Copper vs. R30155 Cobalt

C12200 copper belongs to the copper alloys classification, while R30155 cobalt belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C12200 copper and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 3.2 to 50
34
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
81
Shear Strength, MPa 150 to 240
570
Tensile Strength: Ultimate (UTS), MPa 220 to 410
850
Tensile Strength: Yield (Proof), MPa 69 to 400
390

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1080
1470
Melting Onset (Solidus), °C 1030
1420
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 340
12
Thermal Expansion, µm/m-K 17
14

Otherwise Unclassified Properties

Base Metal Price, % relative 31
80
Density, g/cm3 9.0
8.5
Embodied Carbon, kg CO2/kg material 2.6
9.7
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 91
230
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 690
370
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 6.9 to 13
28
Strength to Weight: Bending, points 9.1 to 14
24
Thermal Diffusivity, mm2/s 98
3.2
Thermal Shock Resistance, points 7.9 to 15
21

Alloy Composition

Carbon (C), % 0
0.080 to 0.16
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 99.9 to 99.985
0
Iron (Fe), % 0
24.3 to 36.2
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0.015 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
0.75 to 1.3
Tungsten (W), % 0
2.0 to 3.0