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R30006 Cobalt vs. C48600 Brass

R30006 cobalt belongs to the cobalt alloys classification, while C48600 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is C48600 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
100
Elongation at Break, % 1.0
20 to 25
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 85
39
Tensile Strength: Ultimate (UTS), MPa 900
280 to 360
Tensile Strength: Yield (Proof), MPa 540
110 to 170

Thermal Properties

Latent Heat of Fusion, J/g 320
170
Melting Completion (Liquidus), °C 1400
900
Melting Onset (Solidus), °C 1290
890
Specific Heat Capacity, J/kg-K 450
380
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
25
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
28

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.1
Embodied Carbon, kg CO2/kg material 7.8
2.8
Embodied Energy, MJ/kg 110
47
Embodied Water, L/kg 500
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
55 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 670
61 to 140
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 29
9.5 to 12
Strength to Weight: Bending, points 24
12 to 14
Thermal Diffusivity, mm2/s 3.9
36
Thermal Shock Resistance, points 26
9.3 to 12

Alloy Composition


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Arsenic (As), % 0
0.020 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
59 to 62
Iron (Fe), % 0 to 3.0
0
Lead (Pb), % 0
1.0 to 2.5
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Silicon (Si), % 0 to 2.0
0
Tin (Sn), % 0
0.3 to 1.5
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
33.4 to 39.7
Residuals, % 0
0 to 0.4