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C67400 Bronze vs. R31233 Cobalt

C67400 bronze belongs to the copper alloys classification, while R31233 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 C67400 bronze and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 22 to 28
17
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 41
85
Tensile Strength: Ultimate (UTS), MPa 480 to 610
1020
Tensile Strength: Yield (Proof), MPa 250 to 370
420

Thermal Properties

Latent Heat of Fusion, J/g 190
320
Melting Completion (Liquidus), °C 890
1350
Melting Onset (Solidus), °C 870
1330
Specific Heat Capacity, J/kg-K 400
440
Thermal Conductivity, W/m-K 100
12
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 26
2.1

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.6
Embodied Carbon, kg CO2/kg material 2.8
8.4
Embodied Energy, MJ/kg 48
110
Embodied Water, L/kg 330
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 660
410
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 17 to 22
33
Strength to Weight: Bending, points 17 to 20
26
Thermal Diffusivity, mm2/s 32
3.2
Thermal Shock Resistance, points 16 to 20
25

Alloy Composition

Aluminum (Al), % 0.5 to 2.0
0
Boron (B), % 0
0 to 0.015
Carbon (C), % 0
0.020 to 0.1
Chromium (Cr), % 0
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Copper (Cu), % 57 to 60
0
Iron (Fe), % 0 to 0.35
1.0 to 5.0
Lead (Pb), % 0 to 0.5
0
Manganese (Mn), % 2.0 to 3.5
0.1 to 1.5
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0 to 0.25
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.5 to 1.5
0.050 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.3
0
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 31.1 to 40
0
Residuals, % 0 to 0.5
0