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R31537 Cobalt vs. C44500 Brass

R31537 cobalt belongs to the cobalt alloys classification, while C44500 brass belongs to the copper 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 R31537 cobalt and the bottom bar is C44500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.3
Embodied Carbon, kg CO2/kg material 8.1
2.7
Embodied Energy, MJ/kg 110
46
Embodied Water, L/kg 530
330

Common Calculations

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

Alloy Composition

Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.9 to 69
0
Copper (Cu), % 0
70 to 73
Iron (Fe), % 0 to 0.75
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0.020 to 0.1
Silicon (Si), % 0 to 1.0
0
Tin (Sn), % 0
0.9 to 1.2
Zinc (Zn), % 0
25.2 to 29.1
Residuals, % 0
0 to 0.4