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C84000 Brass vs. R30001 Cobalt

C84000 brass belongs to the copper alloys classification, while R30001 cobalt belongs to the cobalt alloys. There are 23 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 C84000 brass and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 27
1.0
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
86
Tensile Strength: Ultimate (UTS), MPa 250
620

Thermal Properties

Latent Heat of Fusion, J/g 190
310
Melting Completion (Liquidus), °C 1040
1530
Melting Onset (Solidus), °C 940
1260
Specific Heat Capacity, J/kg-K 380
430
Thermal Conductivity, W/m-K 72
15
Thermal Expansion, µm/m-K 18
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 17
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.6
9.0
Embodied Carbon, kg CO2/kg material 3.0
8.9
Embodied Energy, MJ/kg 49
130
Embodied Water, L/kg 330
460

Common Calculations

Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
22
Strength to Weight: Axial, points 8.2
19
Strength to Weight: Bending, points 10
18
Thermal Diffusivity, mm2/s 22
3.7
Thermal Shock Resistance, points 9.0
19

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.020
0
Boron (B), % 0 to 0.1
0
Carbon (C), % 0
2.0 to 3.0
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
43 to 59
Copper (Cu), % 82 to 89
0
Iron (Fe), % 0 to 0.4
0 to 3.0
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0 to 0.010
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0.5 to 2.0
0 to 3.0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0 to 2.0
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 2.0 to 4.0
0
Tungsten (W), % 0
11 to 13
Zinc (Zn), % 5.0 to 14
0
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0