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C27400 Brass vs. R30035 Cobalt

C27400 brass belongs to the copper alloys classification, while R30035 cobalt belongs to the cobalt alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C27400 brass and the bottom bar is R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220 to 230
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
84 to 89
Tensile Strength: Ultimate (UTS), MPa 370 to 650
900 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 170
320
Melting Completion (Liquidus), °C 920
1440
Melting Onset (Solidus), °C 870
1320
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 120
11
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 31
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 23
100
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 2.7
10
Embodied Energy, MJ/kg 45
140
Embodied Water, L/kg 320
410

Common Calculations

Stiffness to Weight: Axial, points 7.2
14 to 15
Stiffness to Weight: Bending, points 20
23 to 24
Strength to Weight: Axial, points 13 to 23
29 to 61
Strength to Weight: Bending, points 14 to 21
24 to 39
Thermal Diffusivity, mm2/s 37
3.0
Thermal Shock Resistance, points 12 to 22
23 to 46

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
29.1 to 39
Copper (Cu), % 61 to 64
0
Iron (Fe), % 0 to 0.1
0 to 1.0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0 to 0.15
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0 to 1.0
Zinc (Zn), % 35.6 to 39
0
Residuals, % 0 to 0.3
0