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CC212E Bronze vs. R31539 Cobalt

CC212E bronze belongs to the copper alloys classification, while R31539 cobalt belongs to the cobalt alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is CC212E bronze and the bottom bar is R31539 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
220
Elongation at Break, % 20
13 to 22
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 47
86
Tensile Strength: Ultimate (UTS), MPa 710
1000 to 1340
Tensile Strength: Yield (Proof), MPa 310
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 230
320
Melting Completion (Liquidus), °C 1080
1360
Melting Onset (Solidus), °C 1020
1290
Specific Heat Capacity, J/kg-K 440
450
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.2
8.4
Embodied Carbon, kg CO2/kg material 3.4
8.2
Embodied Energy, MJ/kg 55
110
Embodied Water, L/kg 370
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
140 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 390
780 to 2000
Stiffness to Weight: Axial, points 8.5
15
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 24
33 to 44
Strength to Weight: Bending, points 21
27 to 32
Thermal Shock Resistance, points 22
24 to 32

Alloy Composition

Aluminum (Al), % 7.0 to 9.0
0.3 to 1.0
Carbon (C), % 0
0 to 0.14
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
57.7 to 68.7
Copper (Cu), % 68 to 77
0
Iron (Fe), % 2.0 to 4.0
0 to 0.75
Lanthanum (La), % 0
0.030 to 0.2
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 8.0 to 15
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 1.5 to 4.5
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Silicon (Si), % 0 to 0.1
0 to 1.0
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 0 to 1.0
0