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EN 2.4964 Cobalt vs. C85700 Brass

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C85700 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 EN 2.4964 cobalt and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
100
Elongation at Break, % 40
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 86
40
Tensile Strength: Ultimate (UTS), MPa 960
310
Tensile Strength: Yield (Proof), MPa 390
110

Thermal Properties

Latent Heat of Fusion, J/g 290
170
Melting Completion (Liquidus), °C 1630
940
Melting Onset (Solidus), °C 1550
910
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 15
84
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
22
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
25

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.0
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
41
Resilience: Unit (Modulus of Resilience), kJ/m3 340
59
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 21
20
Strength to Weight: Axial, points 28
11
Strength to Weight: Bending, points 23
13
Thermal Diffusivity, mm2/s 3.9
27
Thermal Shock Resistance, points 25
10

Alloy Composition


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Aluminum (Al), % 0
0 to 0.8
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
58 to 64
Iron (Fe), % 0 to 3.0
0 to 0.7
Lead (Pb), % 0
0.8 to 1.5
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0 to 1.0
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
0.5 to 1.5
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
32 to 40
Residuals, % 0
0 to 1.3