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CC495K Bronze vs. R30012 Cobalt

CC495K bronze belongs to the copper alloys classification, while R30012 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 CC495K bronze and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 7.0
1.0
Poisson's Ratio 0.35
0.28
Shear Modulus, GPa 37
86
Tensile Strength: Ultimate (UTS), MPa 240
830
Tensile Strength: Yield (Proof), MPa 120
650

Thermal Properties

Latent Heat of Fusion, J/g 180
320
Melting Completion (Liquidus), °C 930
1470
Melting Onset (Solidus), °C 820
1280
Specific Heat Capacity, J/kg-K 350
440
Thermal Conductivity, W/m-K 48
15
Thermal Expansion, µm/m-K 19
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 10
1.8

Otherwise Unclassified Properties

Density, g/cm3 9.0
8.8
Embodied Carbon, kg CO2/kg material 3.6
8.3
Embodied Energy, MJ/kg 58
120
Embodied Water, L/kg 400
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 68
960
Stiffness to Weight: Axial, points 6.2
14
Stiffness to Weight: Bending, points 17
23
Strength to Weight: Axial, points 7.3
26
Strength to Weight: Bending, points 9.4
22
Thermal Diffusivity, mm2/s 15
3.8
Thermal Shock Resistance, points 8.8
23

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.5
0
Carbon (C), % 0
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 76 to 82
0
Iron (Fe), % 0 to 0.25
0 to 3.0
Lead (Pb), % 8.0 to 11
0
Manganese (Mn), % 0 to 0.2
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 2.0
0 to 3.0
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0 to 2.0
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 9.0 to 11
0
Tungsten (W), % 0
7.5 to 9.5
Zinc (Zn), % 0 to 2.0
0