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R30001 Cobalt vs. CC764S Brass

R30001 cobalt belongs to the cobalt alloys classification, while CC764S 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 R30001 cobalt and the bottom bar is CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 1.0
15
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 86
41
Tensile Strength: Ultimate (UTS), MPa 620
680

Thermal Properties

Latent Heat of Fusion, J/g 310
180
Melting Completion (Liquidus), °C 1530
850
Melting Onset (Solidus), °C 1260
810
Specific Heat Capacity, J/kg-K 430
400
Thermal Conductivity, W/m-K 15
94
Thermal Expansion, µm/m-K 11
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
32
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
36

Otherwise Unclassified Properties

Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 8.9
2.9
Embodied Energy, MJ/kg 130
49
Embodied Water, L/kg 460
330

Common Calculations

Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 22
20
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 3.7
30
Thermal Shock Resistance, points 19
22

Alloy Composition

Aluminum (Al), % 0
1.0 to 3.0
Antimony (Sb), % 0
0 to 0.050
Carbon (C), % 2.0 to 3.0
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 43 to 59
0
Copper (Cu), % 0
52 to 66
Iron (Fe), % 0 to 3.0
0.5 to 2.5
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0
0.3 to 4.0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.1
Tin (Sn), % 0
0 to 0.3
Tungsten (W), % 11 to 13
0
Zinc (Zn), % 0
20.7 to 50.2