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C95520 Bronze vs. R30006 Cobalt

C95520 bronze belongs to the copper alloys classification, while R30006 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C95520 bronze and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 2.6
1.0
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 44
85
Tensile Strength: Ultimate (UTS), MPa 970
900
Tensile Strength: Yield (Proof), MPa 530
540

Thermal Properties

Latent Heat of Fusion, J/g 240
320
Melting Completion (Liquidus), °C 1070
1400
Melting Onset (Solidus), °C 1020
1290
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 18
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.7

Otherwise Unclassified Properties

Density, g/cm3 8.2
8.6
Embodied Carbon, kg CO2/kg material 3.6
7.8
Embodied Energy, MJ/kg 58
110
Embodied Water, L/kg 390
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
7.8
Resilience: Unit (Modulus of Resilience), kJ/m3 1210
670
Stiffness to Weight: Axial, points 8.0
14
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 33
29
Strength to Weight: Bending, points 27
24
Thermal Diffusivity, mm2/s 11
3.9
Thermal Shock Resistance, points 33
26

Alloy Composition

Aluminum (Al), % 10.5 to 11.5
0
Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0 to 0.050
27 to 32
Cobalt (Co), % 0 to 0.2
48.6 to 68.1
Copper (Cu), % 74.5 to 81.3
0
Iron (Fe), % 4.0 to 5.5
0 to 3.0
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 4.2 to 6.0
0 to 3.0
Silicon (Si), % 0 to 0.15
0 to 2.0
Tin (Sn), % 0 to 0.25
0
Tungsten (W), % 0
4.0 to 6.0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.5
0