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EN 2.4964 Cobalt vs. CC755S Brass

EN 2.4964 cobalt belongs to the cobalt alloys classification, while CC755S 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 EN 2.4964 cobalt and the bottom bar is CC755S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
100
Elongation at Break, % 40
9.5
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 86
40
Tensile Strength: Ultimate (UTS), MPa 960
390
Tensile Strength: Yield (Proof), MPa 390
250

Thermal Properties

Latent Heat of Fusion, J/g 290
170
Melting Completion (Liquidus), °C 1630
820
Melting Onset (Solidus), °C 1550
780
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
27
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
30

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.1
Embodied Carbon, kg CO2/kg material 9.8
2.7
Embodied Energy, MJ/kg 140
46
Embodied Water, L/kg 450
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
33
Resilience: Unit (Modulus of Resilience), kJ/m3 340
290
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 28
14
Strength to Weight: Bending, points 23
15
Thermal Diffusivity, mm2/s 3.9
38
Thermal Shock Resistance, points 25
13

Alloy Composition

Aluminum (Al), % 0
0.4 to 0.7
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
59.5 to 61
Iron (Fe), % 0 to 3.0
0.050 to 0.2
Lead (Pb), % 0
1.2 to 1.7
Manganese (Mn), % 0 to 2.0
0 to 0.050
Nickel (Ni), % 9.0 to 11
0 to 0.2
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0 to 0.050
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.3
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
35.8 to 38.9