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R30006 Cobalt vs. C94700 Bronze

R30006 cobalt belongs to the cobalt alloys classification, while C94700 bronze belongs to the copper 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 R30006 cobalt and the bottom bar is C94700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 1.0
7.9 to 32
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 900
350 to 590
Tensile Strength: Yield (Proof), MPa 540
160 to 400

Thermal Properties

Latent Heat of Fusion, J/g 320
200
Melting Completion (Liquidus), °C 1400
1030
Melting Onset (Solidus), °C 1290
900
Specific Heat Capacity, J/kg-K 450
380
Thermal Conductivity, W/m-K 15
54
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
12
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
12

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.8
Embodied Carbon, kg CO2/kg material 7.8
3.5
Embodied Energy, MJ/kg 110
56
Embodied Water, L/kg 500
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
41 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 670
110 to 700
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 29
11 to 19
Strength to Weight: Bending, points 24
13 to 18
Thermal Diffusivity, mm2/s 3.9
16
Thermal Shock Resistance, points 26
12 to 21

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.15
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
85 to 90
Iron (Fe), % 0 to 3.0
0 to 0.25
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.2
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
4.5 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 2.0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
4.5 to 6.0
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
1.0 to 2.5
Residuals, % 0
0 to 1.3