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C99600 Bronze vs. R30605 Cobalt

C99600 bronze belongs to the copper alloys classification, while R30605 cobalt belongs to the cobalt alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C99600 bronze and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
210
Elongation at Break, % 27 to 34
34
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 56
81
Tensile Strength: Ultimate (UTS), MPa 560
1130 to 1900
Tensile Strength: Yield (Proof), MPa 250 to 300
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Melting Completion (Liquidus), °C 1100
1410
Melting Onset (Solidus), °C 1050
1330
Specific Heat Capacity, J/kg-K 440
410
Thermal Expansion, µm/m-K 19
12

Otherwise Unclassified Properties

Density, g/cm3 8.1
9.6
Embodied Carbon, kg CO2/kg material 3.2
9.8
Embodied Energy, MJ/kg 51
140
Embodied Water, L/kg 300
450

Common Calculations

Stiffness to Weight: Axial, points 10
12
Stiffness to Weight: Bending, points 22
21
Strength to Weight: Axial, points 19
33 to 55
Strength to Weight: Bending, points 19
25 to 36
Thermal Shock Resistance, points 14
31 to 52

Alloy Composition

Aluminum (Al), % 1.0 to 2.8
0
Carbon (C), % 0 to 0.050
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0 to 0.2
46.4 to 57
Copper (Cu), % 50.8 to 60
0
Iron (Fe), % 0 to 0.2
0 to 3.0
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 39 to 45
1.0 to 2.0
Nickel (Ni), % 0 to 0.2
9.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.3
0