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C65500 Bronze vs. R30016 Cobalt

C65500 bronze 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 C65500 bronze and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 4.0 to 70
8.4
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
85
Tensile Strength: Ultimate (UTS), MPa 360 to 760
1010
Tensile Strength: Yield (Proof), MPa 120 to 430
580

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1030
1360
Melting Onset (Solidus), °C 970
1270
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 36
15
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.5
Embodied Carbon, kg CO2/kg material 2.7
7.7
Embodied Energy, MJ/kg 42
110
Embodied Water, L/kg 300
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 450
72
Resilience: Unit (Modulus of Resilience), kJ/m3 62 to 790
770
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12 to 24
33
Strength to Weight: Bending, points 13 to 21
26
Thermal Diffusivity, mm2/s 10
3.9
Thermal Shock Resistance, points 12 to 26
24

Alloy Composition

Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
49.6 to 66.9
Copper (Cu), % 91.5 to 96.7
0
Iron (Fe), % 0 to 0.8
0 to 3.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0.5 to 1.3
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.6
0 to 3.0
Silicon (Si), % 2.8 to 3.8
0.2 to 2.0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 0 to 1.5
0
Residuals, % 0 to 0.5
0