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C86300 Bronze vs. R30605 Cobalt

C86300 bronze belongs to the copper alloys classification, while R30605 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C86300 bronze and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 14
34
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 42
81
Tensile Strength: Ultimate (UTS), MPa 850
1130 to 1900
Tensile Strength: Yield (Proof), MPa 480
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 200
290
Melting Completion (Liquidus), °C 920
1410
Melting Onset (Solidus), °C 890
1330
Specific Heat Capacity, J/kg-K 420
410
Thermal Conductivity, W/m-K 35
9.6
Thermal Expansion, µm/m-K 20
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
1.8

Otherwise Unclassified Properties

Density, g/cm3 7.8
9.6
Embodied Carbon, kg CO2/kg material 3.0
9.8
Embodied Energy, MJ/kg 51
140
Embodied Water, L/kg 360
450

Common Calculations

Stiffness to Weight: Axial, points 7.8
12
Stiffness to Weight: Bending, points 20
21
Strength to Weight: Axial, points 30
33 to 55
Strength to Weight: Bending, points 25
25 to 36
Thermal Diffusivity, mm2/s 11
2.5
Thermal Shock Resistance, points 28
31 to 52

Alloy Composition

Aluminum (Al), % 5.0 to 7.5
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 57
Copper (Cu), % 60 to 66
0
Iron (Fe), % 2.0 to 4.0
0 to 3.0
Lead (Pb), % 0 to 0.2
0
Manganese (Mn), % 2.5 to 5.0
1.0 to 2.0
Nickel (Ni), % 0 to 1.0
9.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.2
0
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 22 to 28
0
Residuals, % 0 to 1.0
0