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C46500 Brass vs. R30016 Cobalt

C46500 brass belongs to the copper alloys classification, while R30016 cobalt belongs to the cobalt 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 C46500 brass and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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