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C84000 Brass vs. R31233 Cobalt

C84000 brass belongs to the copper alloys classification, while R31233 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C84000 brass and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 27
17
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 42
85
Tensile Strength: Ultimate (UTS), MPa 250
1020
Tensile Strength: Yield (Proof), MPa 140
420

Thermal Properties

Latent Heat of Fusion, J/g 190
320
Melting Completion (Liquidus), °C 1040
1350
Melting Onset (Solidus), °C 940
1330
Specific Heat Capacity, J/kg-K 380
440
Thermal Conductivity, W/m-K 72
12
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.6
Embodied Carbon, kg CO2/kg material 3.0
8.4
Embodied Energy, MJ/kg 49
110
Embodied Water, L/kg 330
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
140
Resilience: Unit (Modulus of Resilience), kJ/m3 83
410
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 8.2
33
Strength to Weight: Bending, points 10
26
Thermal Diffusivity, mm2/s 22
3.2
Thermal Shock Resistance, points 9.0
25

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.020
0
Boron (B), % 0 to 0.1
0 to 0.015
Carbon (C), % 0
0.020 to 0.1
Chromium (Cr), % 0
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Copper (Cu), % 82 to 89
0
Iron (Fe), % 0 to 0.4
1.0 to 5.0
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0 to 0.010
0.1 to 1.5
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0.5 to 2.0
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0 to 0.050
0 to 0.030
Silicon (Si), % 0 to 0.0050
0.050 to 1.0
Sulfur (S), % 0.1 to 0.65
0 to 0.020
Tin (Sn), % 2.0 to 4.0
0
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 5.0 to 14
0
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0