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EN 2.4964 Cobalt vs. C68100 Brass

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C68100 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 C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
100
Elongation at Break, % 40
29
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 86
40
Tensile Strength: Ultimate (UTS), MPa 960
380
Tensile Strength: Yield (Proof), MPa 390
140

Thermal Properties

Latent Heat of Fusion, J/g 290
170
Melting Completion (Liquidus), °C 1630
890
Melting Onset (Solidus), °C 1550
870
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 15
98
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
24
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
27

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.9
Embodied Carbon, kg CO2/kg material 9.8
2.8
Embodied Energy, MJ/kg 140
47
Embodied Water, L/kg 450
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
86
Resilience: Unit (Modulus of Resilience), kJ/m3 340
94
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 21
20
Strength to Weight: Axial, points 28
13
Strength to Weight: Bending, points 23
15
Thermal Diffusivity, mm2/s 3.9
32
Thermal Shock Resistance, points 25
13

Alloy Composition


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Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
56 to 60
Iron (Fe), % 0 to 3.0
0.25 to 1.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0.010 to 0.5
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0.040 to 0.15
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0.75 to 1.1
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
36.4 to 43
Residuals, % 0
0 to 0.5