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C99700 Brass vs. R30016 Cobalt

C99700 brass belongs to the copper alloys classification, while R30016 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C99700 brass and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 25
8.4
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 46
85
Tensile Strength: Ultimate (UTS), MPa 380
1010
Tensile Strength: Yield (Proof), MPa 170
580

Thermal Properties

Latent Heat of Fusion, J/g 200
320
Melting Completion (Liquidus), °C 900
1360
Melting Onset (Solidus), °C 880
1270
Specific Heat Capacity, J/kg-K 410
450
Thermal Expansion, µm/m-K 20
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.1
8.5
Embodied Carbon, kg CO2/kg material 3.3
7.7
Embodied Energy, MJ/kg 53
110
Embodied Water, L/kg 320
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
72
Resilience: Unit (Modulus of Resilience), kJ/m3 120
770
Stiffness to Weight: Axial, points 8.3
14
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 13
33
Strength to Weight: Bending, points 14
26
Thermal Shock Resistance, points 11
24

Alloy Composition


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Aluminum (Al), % 0.5 to 3.0
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), % 54 to 65.5
0
Iron (Fe), % 0 to 1.0
0 to 3.0
Lead (Pb), % 0 to 2.0
0
Manganese (Mn), % 11 to 15
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 4.0 to 6.0
0 to 3.0
Silicon (Si), % 0
0.2 to 2.0
Tin (Sn), % 0 to 1.0
0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 19 to 25
0
Residuals, % 0 to 0.3
0