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R30605 Cobalt vs. C41300 Brass

R30605 cobalt belongs to the cobalt alloys classification, while C41300 brass belongs to the copper alloys. There are 24 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 R30605 cobalt and the bottom bar is C41300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 34
2.0 to 44
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 81
42
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
300 to 630
Tensile Strength: Yield (Proof), MPa 470 to 1600
120 to 570

Thermal Properties

Latent Heat of Fusion, J/g 290
200
Melting Completion (Liquidus), °C 1410
1040
Melting Onset (Solidus), °C 1330
1010
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 9.6
130
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
30
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
31

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.7
Embodied Carbon, kg CO2/kg material 9.8
2.7
Embodied Energy, MJ/kg 140
44
Embodied Water, L/kg 450
320

Common Calculations

Stiffness to Weight: Axial, points 12
7.2
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 33 to 55
9.6 to 20
Strength to Weight: Bending, points 25 to 36
11 to 19
Thermal Diffusivity, mm2/s 2.5
40
Thermal Shock Resistance, points 31 to 52
11 to 22

Alloy Composition


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Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
89 to 93
Iron (Fe), % 0 to 3.0
0 to 0.050
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 1.0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.7 to 1.3
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
5.1 to 10.3
Residuals, % 0
0 to 0.5