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C67500 Bronze vs. R30016 Cobalt

C67500 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 (9, in this case) are not shown.

For each property being compared, the top bar is C67500 bronze and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 14 to 33
8.4
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 40
85
Tensile Strength: Ultimate (UTS), MPa 430 to 580
1010
Tensile Strength: Yield (Proof), MPa 170 to 370
580

Thermal Properties

Latent Heat of Fusion, J/g 170
320
Melting Completion (Liquidus), °C 890
1360
Melting Onset (Solidus), °C 870
1270
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 21
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 27
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.0
8.5
Embodied Carbon, kg CO2/kg material 2.8
7.7
Embodied Energy, MJ/kg 47
110
Embodied Water, L/kg 330
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61 to 130
72
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 650
770
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 15 to 20
33
Strength to Weight: Bending, points 16 to 19
26
Thermal Diffusivity, mm2/s 34
3.9
Thermal Shock Resistance, points 14 to 19
24

Alloy Composition

Aluminum (Al), % 0 to 0.25
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), % 57 to 60
0
Iron (Fe), % 0.8 to 2.0
0 to 3.0
Lead (Pb), % 0 to 0.2
0
Manganese (Mn), % 0.050 to 0.5
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 1.5
0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 35.1 to 41.7
0
Residuals, % 0 to 0.5
0