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C35600 Brass vs. R30012 Cobalt

C35600 brass belongs to the copper alloys classification, while R30012 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C35600 brass and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 39
86
Tensile Strength: Ultimate (UTS), MPa 340 to 650
830

Thermal Properties

Latent Heat of Fusion, J/g 170
320
Melting Completion (Liquidus), °C 900
1470
Melting Onset (Solidus), °C 890
1280
Specific Heat Capacity, J/kg-K 380
440
Thermal Conductivity, W/m-K 120
15
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 29
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.1
8.8
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 45
120
Embodied Water, L/kg 320
480

Common Calculations

Stiffness to Weight: Axial, points 7.0
14
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 11 to 22
26
Strength to Weight: Bending, points 13 to 21
22
Thermal Diffusivity, mm2/s 38
3.8
Thermal Shock Resistance, points 11 to 22
23

Alloy Composition

Carbon (C), % 0
1.4 to 2.0
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
47.5 to 64.1
Copper (Cu), % 60 to 63
0
Iron (Fe), % 0 to 0.1
0 to 3.0
Lead (Pb), % 2.0 to 3.0
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Tungsten (W), % 0
7.5 to 9.5
Zinc (Zn), % 33.4 to 38
0
Residuals, % 0 to 0.5
0