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C87610 Bronze vs. R30035 Cobalt

C87610 bronze belongs to the copper alloys classification, while R30035 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C87610 bronze and the bottom bar is R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220 to 230
Elongation at Break, % 22
9.0 to 46
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
84 to 89
Tensile Strength: Ultimate (UTS), MPa 350
900 to 1900
Tensile Strength: Yield (Proof), MPa 140
300 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 970
1440
Melting Onset (Solidus), °C 820
1320
Specific Heat Capacity, J/kg-K 410
440
Thermal Conductivity, W/m-K 28
11
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 6.4
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 29
100
Density, g/cm3 8.5
8.7
Embodied Carbon, kg CO2/kg material 2.6
10
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 300
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 62
160 to 320
Resilience: Unit (Modulus of Resilience), kJ/m3 88
210 to 5920
Stiffness to Weight: Axial, points 7.4
14 to 15
Stiffness to Weight: Bending, points 19
23 to 24
Strength to Weight: Axial, points 11
29 to 61
Strength to Weight: Bending, points 13
24 to 39
Thermal Diffusivity, mm2/s 8.1
3.0
Thermal Shock Resistance, points 13
23 to 46

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
29.1 to 39
Copper (Cu), % 90 to 94
0
Iron (Fe), % 0 to 0.2
0 to 1.0
Lead (Pb), % 0 to 0.2
0
Manganese (Mn), % 0 to 0.25
0 to 0.15
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 3.0 to 5.0
0 to 0.15
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0 to 1.0
Zinc (Zn), % 3.0 to 5.0
0
Residuals, % 0 to 0.5
0