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G-CoCr28 Cobalt vs. C87500 Brass

G-CoCr28 cobalt belongs to the cobalt alloys classification, while C87500 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is G-CoCr28 cobalt and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 6.7
18
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 83
42
Tensile Strength: Ultimate (UTS), MPa 560
460
Tensile Strength: Yield (Proof), MPa 260
190

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Maximum Temperature: Mechanical, °C 1200
170
Melting Completion (Liquidus), °C 1330
920
Melting Onset (Solidus), °C 1270
820
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 8.5
28
Thermal Expansion, µm/m-K 14
18

Otherwise Unclassified Properties

Base Metal Price, % relative 100
27
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 6.2
2.7
Embodied Energy, MJ/kg 84
44
Embodied Water, L/kg 440
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
67
Resilience: Unit (Modulus of Resilience), kJ/m3 160
160
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 19
16
Strength to Weight: Bending, points 19
16
Thermal Diffusivity, mm2/s 2.2
8.3
Thermal Shock Resistance, points 14
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0.050 to 0.25
0
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 48 to 52
0
Copper (Cu), % 0
79 to 85
Iron (Fe), % 9.7 to 24.5
0
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
0
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.5 to 1.5
3.0 to 5.0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
12 to 16
Residuals, % 0
0 to 0.5