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R30816 Cobalt vs. CC330G Bronze

R30816 cobalt belongs to the cobalt alloys classification, while CC330G bronze belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R30816 cobalt and the bottom bar is CC330G bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
110
Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 23
20
Poisson's Ratio 0.3
0.34
Shear Modulus, GPa 81
42
Tensile Strength: Ultimate (UTS), MPa 1020
530
Tensile Strength: Yield (Proof), MPa 460
190

Thermal Properties

Latent Heat of Fusion, J/g 300
230
Melting Completion (Liquidus), °C 1540
1050
Melting Onset (Solidus), °C 1460
1000
Specific Heat Capacity, J/kg-K 420
430
Thermal Conductivity, W/m-K 13
62
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Density, g/cm3 9.1
8.4
Embodied Carbon, kg CO2/kg material 20
3.2
Embodied Energy, MJ/kg 320
52
Embodied Water, L/kg 440
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
82
Resilience: Unit (Modulus of Resilience), kJ/m3 510
170
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 22
19
Strength to Weight: Axial, points 31
18
Strength to Weight: Bending, points 25
17
Thermal Diffusivity, mm2/s 3.3
17
Thermal Shock Resistance, points 28
19

Alloy Composition

Aluminum (Al), % 0
8.0 to 10.5
Carbon (C), % 0.32 to 0.42
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 40 to 49.8
0
Copper (Cu), % 0
87 to 92
Iron (Fe), % 0 to 5.0
0 to 1.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 1.0 to 2.0
0 to 0.5
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 19 to 21
0 to 1.0
Niobium (Nb), % 3.5 to 4.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 3.5 to 4.5
0
Tin (Sn), % 0
0 to 0.3
Tungsten (W), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.5