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C94700 Bronze vs. R30016 Cobalt

C94700 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 (8, in this case) are not shown.

For each property being compared, the top bar is C94700 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, % 7.9 to 32
8.4
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
85
Tensile Strength: Ultimate (UTS), MPa 350 to 590
1010
Tensile Strength: Yield (Proof), MPa 160 to 400
580

Thermal Properties

Latent Heat of Fusion, J/g 200
320
Melting Completion (Liquidus), °C 1030
1360
Melting Onset (Solidus), °C 900
1270
Specific Heat Capacity, J/kg-K 380
450
Thermal Conductivity, W/m-K 54
15
Thermal Expansion, µm/m-K 17
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.5
Embodied Carbon, kg CO2/kg material 3.5
7.7
Embodied Energy, MJ/kg 56
110
Embodied Water, L/kg 350
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41 to 89
72
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 700
770
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 11 to 19
33
Strength to Weight: Bending, points 13 to 18
26
Thermal Diffusivity, mm2/s 16
3.9
Thermal Shock Resistance, points 12 to 21
24

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.15
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), % 85 to 90
0
Iron (Fe), % 0 to 0.25
0 to 3.0
Lead (Pb), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.2
0.5 to 2.0
Molybdenum (Mo), % 0
0 to 1.5
Nickel (Ni), % 4.5 to 6.0
0 to 3.0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0.2 to 2.0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 4.5 to 6.0
0
Tungsten (W), % 0
3.5 to 5.5
Zinc (Zn), % 1.0 to 2.5
0
Residuals, % 0 to 1.3
0