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C51000 Bronze vs. R31233 Cobalt

C51000 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 (6, in this case) are not shown.

For each property being compared, the top bar is C51000 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, % 2.7 to 64
17
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 42
85
Tensile Strength: Ultimate (UTS), MPa 330 to 780
1020
Tensile Strength: Yield (Proof), MPa 130 to 750
420

Thermal Properties

Latent Heat of Fusion, J/g 200
320
Melting Completion (Liquidus), °C 1050
1350
Melting Onset (Solidus), °C 960
1330
Specific Heat Capacity, J/kg-K 380
440
Thermal Conductivity, W/m-K 77
12
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 18
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.6
Embodied Carbon, kg CO2/kg material 3.1
8.4
Embodied Energy, MJ/kg 50
110
Embodied Water, L/kg 350
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.0 to 490
140
Resilience: Unit (Modulus of Resilience), kJ/m3 75 to 2490
410
Stiffness to Weight: Axial, points 7.0
14
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 10 to 25
33
Strength to Weight: Bending, points 12 to 21
26
Thermal Diffusivity, mm2/s 23
3.2
Thermal Shock Resistance, points 12 to 28
25

Alloy Composition

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), % 92.9 to 95.5
0
Iron (Fe), % 0 to 0.1
1.0 to 5.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0.1 to 1.5
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0.030 to 0.35
0 to 0.030
Silicon (Si), % 0
0.050 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 4.5 to 5.8
0
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.5
0