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G-CoCr28 Cobalt vs. C85400 Brass

G-CoCr28 cobalt belongs to the cobalt alloys classification, while C85400 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is G-CoCr28 cobalt and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
100
Elongation at Break, % 6.7
23
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 83
40
Tensile Strength: Ultimate (UTS), MPa 560
220
Tensile Strength: Yield (Proof), MPa 260
85

Thermal Properties

Latent Heat of Fusion, J/g 320
180
Maximum Temperature: Mechanical, °C 1200
130
Melting Completion (Liquidus), °C 1330
940
Melting Onset (Solidus), °C 1270
940
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 8.5
89
Thermal Expansion, µm/m-K 14
20

Otherwise Unclassified Properties

Base Metal Price, % relative 100
25
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 6.2
2.8
Embodied Energy, MJ/kg 84
46
Embodied Water, L/kg 440
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
40
Resilience: Unit (Modulus of Resilience), kJ/m3 160
35
Stiffness to Weight: Axial, points 15
7.0
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 19
7.5
Strength to Weight: Bending, points 19
9.9
Thermal Diffusivity, mm2/s 2.2
28
Thermal Shock Resistance, points 14
7.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0.050 to 0.25
0
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 48 to 52
0
Copper (Cu), % 0
65 to 70
Iron (Fe), % 9.7 to 24.5
0 to 0.7
Lead (Pb), % 0
1.5 to 3.8
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
0 to 1.0
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.5 to 1.5
0 to 0.050
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0
24 to 32
Residuals, % 0
0 to 1.1