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CC762S Brass vs. R31539 Cobalt

CC762S brass belongs to the copper alloys classification, while R31539 cobalt belongs to the cobalt 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 CC762S brass and the bottom bar is R31539 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 7.3
13 to 22
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 43
86
Tensile Strength: Ultimate (UTS), MPa 840
1000 to 1340
Tensile Strength: Yield (Proof), MPa 540
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 200
320
Melting Completion (Liquidus), °C 920
1360
Melting Onset (Solidus), °C 870
1290
Specific Heat Capacity, J/kg-K 420
450
Thermal Conductivity, W/m-K 51
13
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 32
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.0
8.4
Embodied Carbon, kg CO2/kg material 3.1
8.2
Embodied Energy, MJ/kg 51
110
Embodied Water, L/kg 350
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
140 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
780 to 2000
Stiffness to Weight: Axial, points 7.8
15
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 29
33 to 44
Strength to Weight: Bending, points 25
27 to 32
Thermal Diffusivity, mm2/s 15
3.5
Thermal Shock Resistance, points 27
24 to 32

Alloy Composition

Aluminum (Al), % 3.0 to 7.0
0.3 to 1.0
Antimony (Sb), % 0 to 0.030
0
Carbon (C), % 0
0 to 0.14
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
57.7 to 68.7
Copper (Cu), % 57 to 67
0
Iron (Fe), % 1.5 to 4.0
0 to 0.75
Lanthanum (La), % 0
0.030 to 0.2
Lead (Pb), % 0 to 0.2
0
Manganese (Mn), % 2.5 to 5.0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0 to 3.0
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0 to 1.0
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 13.4 to 36
0