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R31539 Cobalt vs. CC760S Brass

R31539 cobalt belongs to the cobalt alloys classification, while CC760S brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R31539 cobalt and the bottom bar is CC760S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 13 to 22
22
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
42
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
180
Tensile Strength: Yield (Proof), MPa 590 to 940
80

Thermal Properties

Latent Heat of Fusion, J/g 320
190
Melting Completion (Liquidus), °C 1360
1000
Melting Onset (Solidus), °C 1290
940
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
150
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
38
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
40

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.6
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 110
43
Embodied Water, L/kg 530
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 190
33
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
29
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 33 to 44
5.8
Strength to Weight: Bending, points 27 to 32
8.2
Thermal Diffusivity, mm2/s 3.5
45
Thermal Shock Resistance, points 24 to 32
6.2

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
0 to 0.010
Arsenic (As), % 0
0.050 to 0.15
Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 57.7 to 68.7
0
Copper (Cu), % 0
83 to 88
Iron (Fe), % 0 to 0.75
0 to 0.15
Lanthanum (La), % 0.030 to 0.2
0
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0 to 1.0
0 to 0.1
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0 to 0.1
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0 to 0.020
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0
10.7 to 17