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C44300 Brass vs. R31537 Cobalt

C44300 brass belongs to the copper alloys classification, while R31537 cobalt belongs to the cobalt alloys. There are 24 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 C44300 brass and the bottom bar is R31537 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
87
Tensile Strength: Ultimate (UTS), MPa 350
1000 to 1340
Tensile Strength: Yield (Proof), MPa 120
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 180
320
Melting Completion (Liquidus), °C 940
1360
Melting Onset (Solidus), °C 900
1290
Specific Heat Capacity, J/kg-K 380
450
Thermal Conductivity, W/m-K 110
13
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 27
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.4
Embodied Carbon, kg CO2/kg material 2.8
8.1
Embodied Energy, MJ/kg 46
110
Embodied Water, L/kg 330
530

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 65
780 to 1990
Stiffness to Weight: Axial, points 7.2
15
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12
33 to 44
Strength to Weight: Bending, points 13
26 to 32
Thermal Diffusivity, mm2/s 35
3.4
Thermal Shock Resistance, points 12
24 to 32

Alloy Composition

Arsenic (As), % 0.020 to 0.060
0
Carbon (C), % 0
0 to 0.14
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
58.9 to 69
Copper (Cu), % 70 to 73
0
Iron (Fe), % 0 to 0.060
0 to 0.75
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Silicon (Si), % 0
0 to 1.0
Tin (Sn), % 0.9 to 1.2
0
Zinc (Zn), % 25.2 to 29.1
0
Residuals, % 0 to 0.4
0