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C83600 Ounce Metal vs. R31538 Cobalt

C83600 ounce metal belongs to the copper alloys classification, while R31538 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C83600 ounce metal and the bottom bar is R31538 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 21
13 to 23
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 39
86
Tensile Strength: Ultimate (UTS), MPa 250
1020 to 1360
Tensile Strength: Yield (Proof), MPa 120
580 to 930

Thermal Properties

Latent Heat of Fusion, J/g 190
320
Melting Completion (Liquidus), °C 1010
1360
Melting Onset (Solidus), °C 850
1290
Specific Heat Capacity, J/kg-K 370
450
Thermal Conductivity, W/m-K 72
13
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 15
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.4
Embodied Carbon, kg CO2/kg material 3.1
8.1
Embodied Energy, MJ/kg 50
110
Embodied Water, L/kg 350
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43
140 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 70
750 to 1920
Stiffness to Weight: Axial, points 6.7
15
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 7.9
34 to 45
Strength to Weight: Bending, points 10
27 to 32
Thermal Diffusivity, mm2/s 22
3.5
Thermal Shock Resistance, points 9.3
25 to 33

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.25
0
Carbon (C), % 0
0.15 to 0.35
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
58.7 to 68.9
Copper (Cu), % 84 to 86
0
Iron (Fe), % 0 to 0.3
0 to 0.75
Lead (Pb), % 4.0 to 6.0
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0 to 1.0
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 4.0 to 6.0
0
Residuals, % 0 to 0.7
0