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CC481K Bronze vs. R30016 Cobalt

CC481K 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 CC481K bronze and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 4.5
8.4
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 40
85
Tensile Strength: Ultimate (UTS), MPa 350
1010
Tensile Strength: Yield (Proof), MPa 180
580

Thermal Properties

Latent Heat of Fusion, J/g 190
320
Melting Completion (Liquidus), °C 1000
1360
Melting Onset (Solidus), °C 880
1270
Specific Heat Capacity, J/kg-K 370
450
Thermal Conductivity, W/m-K 64
15
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.7
8.5
Embodied Carbon, kg CO2/kg material 3.7
7.7
Embodied Energy, MJ/kg 60
110
Embodied Water, L/kg 390
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
72
Resilience: Unit (Modulus of Resilience), kJ/m3 150
770
Stiffness to Weight: Axial, points 6.9
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 11
33
Strength to Weight: Bending, points 13
26
Thermal Diffusivity, mm2/s 20
3.9
Thermal Shock Resistance, points 13
24

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.050
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), % 87 to 89.5
0
Iron (Fe), % 0 to 0.1
0 to 3.0
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.050
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 0 to 0.1
0 to 3.0
Phosphorus (P), % 0 to 1.0
0
Silicon (Si), % 0 to 0.010
0.2 to 2.0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 10 to 11.5
0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 0 to 0.5
0