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C94700 Bronze vs. R30012 Cobalt

C94700 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 (5, in this case) are not shown.

For each property being compared, the top bar is C94700 bronze and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 7.9 to 32
1.0
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
86
Tensile Strength: Ultimate (UTS), MPa 350 to 590
830
Tensile Strength: Yield (Proof), MPa 160 to 400
650

Thermal Properties

Latent Heat of Fusion, J/g 200
320
Melting Completion (Liquidus), °C 1030
1470
Melting Onset (Solidus), °C 900
1280
Specific Heat Capacity, J/kg-K 380
440
Thermal Conductivity, W/m-K 54
15
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.8
Embodied Carbon, kg CO2/kg material 3.5
8.3
Embodied Energy, MJ/kg 56
120
Embodied Water, L/kg 350
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41 to 89
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 700
960
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 11 to 19
26
Strength to Weight: Bending, points 13 to 18
22
Thermal Diffusivity, mm2/s 16
3.8
Thermal Shock Resistance, points 12 to 21
23

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.15
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), % 85 to 90
0
Iron (Fe), % 0 to 0.25
0 to 3.0
Lead (Pb), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.2
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 4.5 to 6.0
0 to 3.0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0 to 2.0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 4.5 to 6.0
0
Tungsten (W), % 0
7.5 to 9.5
Zinc (Zn), % 1.0 to 2.5
0
Residuals, % 0 to 1.3
0