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C95400 Bronze vs. R30012 Cobalt

C95400 bronze belongs to the copper alloys classification, while R30012 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 C95400 bronze and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 8.1 to 16
1.0
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
86
Tensile Strength: Ultimate (UTS), MPa 600 to 710
830
Tensile Strength: Yield (Proof), MPa 240 to 360
650

Thermal Properties

Latent Heat of Fusion, J/g 230
320
Melting Completion (Liquidus), °C 1040
1470
Melting Onset (Solidus), °C 1030
1280
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 59
15
Thermal Expansion, µm/m-K 18
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 14
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.2
8.8
Embodied Carbon, kg CO2/kg material 3.2
8.3
Embodied Energy, MJ/kg 53
120
Embodied Water, L/kg 390
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48 to 75
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 560
960
Stiffness to Weight: Axial, points 7.7
14
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 20 to 24
26
Strength to Weight: Bending, points 19 to 22
22
Thermal Diffusivity, mm2/s 16
3.8
Thermal Shock Resistance, points 21 to 25
23

Alloy Composition

Aluminum (Al), % 10 to 11.5
0
Carbon (C), % 0
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 83 to 87
0
Iron (Fe), % 3.0 to 5.0
0 to 3.0
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 1.5
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Tungsten (W), % 0
7.5 to 9.5
Residuals, % 0 to 0.5
0