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R30003 Cobalt vs. C24000 Brass

R30003 cobalt belongs to the cobalt alloys classification, while C24000 brass belongs to the copper alloys. There are 23 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 R30003 cobalt and the bottom bar is C24000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 83
42
Tensile Strength: Ultimate (UTS), MPa 970 to 1720
310 to 640

Thermal Properties

Latent Heat of Fusion, J/g 310
190
Melting Completion (Liquidus), °C 1400
1000
Melting Onset (Solidus), °C 1440
970
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
140
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
32
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
34

Otherwise Unclassified Properties

Base Metal Price, % relative 95
27
Density, g/cm3 8.4
8.5
Embodied Carbon, kg CO2/kg material 8.0
2.6
Embodied Energy, MJ/kg 110
43
Embodied Water, L/kg 400
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 32 to 57
10 to 21
Strength to Weight: Bending, points 26 to 38
12 to 20
Thermal Diffusivity, mm2/s 3.3
43
Thermal Shock Resistance, points 26 to 45
10 to 22

Alloy Composition

Boron (B), % 0 to 0.1
0
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 39 to 41
0
Copper (Cu), % 0
78.5 to 81.5
Iron (Fe), % 10 to 20.5
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 1.5 to 2.5
0
Molybdenum (Mo), % 6.0 to 8.0
0
Nickel (Ni), % 14 to 16
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 1.2
0
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
18.2 to 21.5
Residuals, % 0
0 to 0.2