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CC494K Bronze vs. R31539 Cobalt

CC494K bronze belongs to the copper alloys classification, while R31539 cobalt belongs to the cobalt alloys. There are 26 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 CC494K bronze and the bottom bar is R31539 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 7.6
13 to 22
Poisson's Ratio 0.35
0.29
Shear Modulus, GPa 39
86
Tensile Strength: Ultimate (UTS), MPa 210
1000 to 1340
Tensile Strength: Yield (Proof), MPa 94
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 180
320
Melting Completion (Liquidus), °C 970
1360
Melting Onset (Solidus), °C 890
1290
Specific Heat Capacity, J/kg-K 360
450
Thermal Conductivity, W/m-K 63
13
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 16
2.1

Otherwise Unclassified Properties

Density, g/cm3 9.1
8.4
Embodied Carbon, kg CO2/kg material 3.1
8.2
Embodied Energy, MJ/kg 50
110
Embodied Water, L/kg 360
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
140 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 43
780 to 2000
Stiffness to Weight: Axial, points 6.4
15
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 6.5
33 to 44
Strength to Weight: Bending, points 8.8
27 to 32
Thermal Diffusivity, mm2/s 19
3.5
Thermal Shock Resistance, points 7.8
24 to 32

Alloy Composition

Aluminum (Al), % 0 to 0.010
0.3 to 1.0
Antimony (Sb), % 0 to 0.5
0
Carbon (C), % 0
0 to 0.14
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
57.7 to 68.7
Copper (Cu), % 78 to 87
0
Iron (Fe), % 0 to 0.25
0 to 0.75
Lanthanum (La), % 0
0.030 to 0.2
Lead (Pb), % 8.0 to 10
0
Manganese (Mn), % 0 to 0.2
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0 to 2.0
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 0 to 2.0
0