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C95520 Bronze vs. R30075 Cobalt

C95520 bronze belongs to the copper alloys classification, while R30075 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 C95520 bronze and the bottom bar is R30075 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210 to 250
Elongation at Break, % 2.6
12
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 44
82 to 98
Tensile Strength: Ultimate (UTS), MPa 970
780 to 1280
Tensile Strength: Yield (Proof), MPa 530
480 to 840

Thermal Properties

Latent Heat of Fusion, J/g 240
320
Melting Completion (Liquidus), °C 1070
1360
Melting Onset (Solidus), °C 1020
1290
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 40
13
Thermal Expansion, µm/m-K 18
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.2
8.4
Embodied Carbon, kg CO2/kg material 3.6
8.1
Embodied Energy, MJ/kg 58
110
Embodied Water, L/kg 390
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
84 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 1210
560 to 1410
Stiffness to Weight: Axial, points 8.0
14 to 17
Stiffness to Weight: Bending, points 20
24 to 25
Strength to Weight: Axial, points 33
26 to 42
Strength to Weight: Bending, points 27
22 to 31
Thermal Diffusivity, mm2/s 11
3.5
Thermal Shock Resistance, points 33
21 to 29

Alloy Composition

Aluminum (Al), % 10.5 to 11.5
0 to 0.1
Boron (B), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.35
Chromium (Cr), % 0 to 0.050
27 to 30
Cobalt (Co), % 0 to 0.2
58.7 to 68
Copper (Cu), % 74.5 to 81.3
0
Iron (Fe), % 4.0 to 5.5
0 to 0.75
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 4.2 to 6.0
0 to 0.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.25
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.5
0