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C95520 Bronze vs. R30605 Cobalt

C95520 bronze belongs to the copper alloys classification, while R30605 cobalt belongs to the cobalt alloys. There are 24 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 C95520 bronze and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 2.6
34
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 44
81
Tensile Strength: Ultimate (UTS), MPa 970
1130 to 1900
Tensile Strength: Yield (Proof), MPa 530
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Melting Completion (Liquidus), °C 1070
1410
Melting Onset (Solidus), °C 1020
1330
Specific Heat Capacity, J/kg-K 450
410
Thermal Conductivity, W/m-K 40
9.6
Thermal Expansion, µm/m-K 18
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.2
9.6
Embodied Carbon, kg CO2/kg material 3.6
9.8
Embodied Energy, MJ/kg 58
140
Embodied Water, L/kg 390
450

Common Calculations

Stiffness to Weight: Axial, points 8.0
12
Stiffness to Weight: Bending, points 20
21
Strength to Weight: Axial, points 33
33 to 55
Strength to Weight: Bending, points 27
25 to 36
Thermal Diffusivity, mm2/s 11
2.5
Thermal Shock Resistance, points 33
31 to 52

Alloy Composition

Aluminum (Al), % 10.5 to 11.5
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0 to 0.050
19 to 21
Cobalt (Co), % 0 to 0.2
46.4 to 57
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
1.0 to 2.0
Nickel (Ni), % 4.2 to 6.0
9.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.25
0
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.5
0