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EN 2.4964 Cobalt vs. C32000 Brass

EN 2.4964 cobalt belongs to the cobalt alloys classification, while C32000 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 C32000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 40
6.8 to 29
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
41
Tensile Strength: Ultimate (UTS), MPa 960
270 to 470
Tensile Strength: Yield (Proof), MPa 390
78 to 390

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Melting Completion (Liquidus), °C 1630
1020
Melting Onset (Solidus), °C 1550
990
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 15
160
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
36
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
37

Otherwise Unclassified Properties

Density, g/cm3 9.6
8.7
Embodied Carbon, kg CO2/kg material 9.8
2.6
Embodied Energy, MJ/kg 140
42
Embodied Water, L/kg 450
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
30 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 340
28 to 680
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 28
8.8 to 15
Strength to Weight: Bending, points 23
11 to 16
Thermal Diffusivity, mm2/s 3.9
47
Thermal Shock Resistance, points 25
9.5 to 16

Alloy Composition


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Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
83.5 to 86.5
Iron (Fe), % 0 to 3.0
0 to 0.1
Lead (Pb), % 0
1.5 to 2.2
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0 to 0.25
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
10.6 to 15
Residuals, % 0
0 to 0.4