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CC751S Brass vs. R30016 Cobalt

CC751S 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 (9, in this case) are not shown.

For each property being compared, the top bar is CC751S brass and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 5.6
8.4
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
85
Tensile Strength: Ultimate (UTS), MPa 450
1010
Tensile Strength: Yield (Proof), MPa 320
580

Thermal Properties

Latent Heat of Fusion, J/g 190
320
Melting Completion (Liquidus), °C 850
1360
Melting Onset (Solidus), °C 810
1270
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 20
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 28
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.1
8.5
Embodied Carbon, kg CO2/kg material 2.8
7.7
Embodied Energy, MJ/kg 46
110
Embodied Water, L/kg 330
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
72
Resilience: Unit (Modulus of Resilience), kJ/m3 480
770
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 15
33
Strength to Weight: Bending, points 16
26
Thermal Diffusivity, mm2/s 35
3.9
Thermal Shock Resistance, points 15
24

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.5
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), % 62.7 to 66
0
Iron (Fe), % 0.25 to 0.5
0 to 3.0
Lead (Pb), % 0.8 to 2.2
0
Manganese (Mn), % 0 to 0.15
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.8
0 to 3.0
Silicon (Si), % 0.65 to 1.1
0.2 to 2.0
Tin (Sn), % 0 to 0.8
0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 27.9 to 35.6
0