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R30006 Cobalt vs. C36000 Brass

R30006 cobalt belongs to the cobalt alloys classification, while C36000 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 C36000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
100
Elongation at Break, % 1.0
5.8 to 23
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 85
39
Tensile Strength: Ultimate (UTS), MPa 900
330 to 530
Tensile Strength: Yield (Proof), MPa 540
140 to 260

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
120
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
26
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
29

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.2
Embodied Carbon, kg CO2/kg material 7.8
2.6
Embodied Energy, MJ/kg 110
45
Embodied Water, L/kg 500
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
25 to 62
Resilience: Unit (Modulus of Resilience), kJ/m3 670
89 to 340
Stiffness to Weight: Axial, points 14
7.0
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 29
11 to 18
Strength to Weight: Bending, points 24
13 to 18
Thermal Diffusivity, mm2/s 3.9
37
Thermal Shock Resistance, points 26
11 to 18

Alloy Composition


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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
60 to 63
Iron (Fe), % 0 to 3.0
0 to 0.35
Lead (Pb), % 0
2.5 to 3.7
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Silicon (Si), % 0 to 2.0
0
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
32.5 to 37.5
Residuals, % 0
0 to 0.5