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R30016 Cobalt vs. C46500 Brass

R30016 cobalt belongs to the cobalt alloys classification, while C46500 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is C46500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
100
Elongation at Break, % 8.4
18 to 50
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 85
40
Tensile Strength: Ultimate (UTS), MPa 1010
380 to 610
Tensile Strength: Yield (Proof), MPa 580
190 to 490

Thermal Properties

Latent Heat of Fusion, J/g 320
170
Melting Completion (Liquidus), °C 1360
900
Melting Onset (Solidus), °C 1270
890
Specific Heat Capacity, J/kg-K 450
380
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 14
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
26
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
29

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.0
Embodied Carbon, kg CO2/kg material 7.7
2.7
Embodied Energy, MJ/kg 110
47
Embodied Water, L/kg 500
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
99 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 770
170 to 1170
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 33
13 to 21
Strength to Weight: Bending, points 26
15 to 20
Thermal Diffusivity, mm2/s 3.9
38
Thermal Shock Resistance, points 24
13 to 20

Alloy Composition

Arsenic (As), % 0
0.020 to 0.060
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 49.6 to 66.9
0
Copper (Cu), % 0
59 to 62
Iron (Fe), % 0 to 3.0
0 to 0.1
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 0.5 to 2.0
0
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
0
Silicon (Si), % 0.2 to 2.0
0
Tin (Sn), % 0
0.5 to 1.0
Tungsten (W), % 3.5 to 5.5
0
Zinc (Zn), % 0
36.2 to 40.5
Residuals, % 0
0 to 0.4