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C60800 Bronze vs. R30816 Cobalt

C60800 bronze belongs to the copper alloys classification, while R30816 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C60800 bronze and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 55
23
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 46
81
Tensile Strength: Ultimate (UTS), MPa 390
1020
Tensile Strength: Yield (Proof), MPa 150
460

Thermal Properties

Latent Heat of Fusion, J/g 220
300
Melting Completion (Liquidus), °C 1060
1540
Melting Onset (Solidus), °C 1050
1460
Specific Heat Capacity, J/kg-K 410
420
Thermal Conductivity, W/m-K 80
13
Thermal Expansion, µm/m-K 18
12

Otherwise Unclassified Properties

Density, g/cm3 8.6
9.1
Embodied Carbon, kg CO2/kg material 2.9
20
Embodied Energy, MJ/kg 48
320
Embodied Water, L/kg 360
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
190
Resilience: Unit (Modulus of Resilience), kJ/m3 94
510
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 19
22
Strength to Weight: Axial, points 13
31
Strength to Weight: Bending, points 14
25
Thermal Diffusivity, mm2/s 23
3.3
Thermal Shock Resistance, points 14
28

Alloy Composition

Aluminum (Al), % 5.0 to 6.5
0
Arsenic (As), % 0.020 to 0.35
0
Carbon (C), % 0
0.32 to 0.42
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 92.5 to 95
0
Iron (Fe), % 0 to 0.1
0 to 5.0
Lead (Pb), % 0 to 0.1
0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
3.5 to 4.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Tungsten (W), % 0
3.5 to 4.5
Residuals, % 0 to 0.5
0