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R30006 Cobalt vs. C84500 Brass

R30006 cobalt belongs to the cobalt alloys classification, while C84500 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
100
Elongation at Break, % 1.0
28
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
39
Tensile Strength: Ultimate (UTS), MPa 900
240
Tensile Strength: Yield (Proof), MPa 540
97

Thermal Properties

Latent Heat of Fusion, J/g 320
180
Melting Completion (Liquidus), °C 1400
980
Melting Onset (Solidus), °C 1290
840
Specific Heat Capacity, J/kg-K 450
360
Thermal Conductivity, W/m-K 15
72
Thermal Expansion, µm/m-K 11
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
16
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
17

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.7
Embodied Carbon, kg CO2/kg material 7.8
2.9
Embodied Energy, MJ/kg 110
47
Embodied Water, L/kg 500
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
54
Resilience: Unit (Modulus of Resilience), kJ/m3 670
45
Stiffness to Weight: Axial, points 14
6.6
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 29
7.7
Strength to Weight: Bending, points 24
9.8
Thermal Diffusivity, mm2/s 3.9
23
Thermal Shock Resistance, points 26
8.6

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
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
77 to 79
Iron (Fe), % 0 to 3.0
0 to 0.4
Lead (Pb), % 0
6.0 to 7.5
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 2.0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
2.0 to 4.0
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
10 to 14
Residuals, % 0
0 to 0.7