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EN 2.4964 Cobalt vs. ZA-12

EN 2.4964 cobalt belongs to the cobalt alloys classification, while ZA-12 belongs to the zinc alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
83
Elongation at Break, % 40
1.6 to 5.3
Fatigue Strength, MPa 220
73 to 120
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 86
33
Tensile Strength: Ultimate (UTS), MPa 960
260 to 400
Tensile Strength: Yield (Proof), MPa 390
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 290
120
Melting Completion (Liquidus), °C 1630
430
Melting Onset (Solidus), °C 1550
380
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
28
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
42

Otherwise Unclassified Properties

Density, g/cm3 9.6
6.0
Embodied Carbon, kg CO2/kg material 9.8
3.4
Embodied Energy, MJ/kg 140
64
Embodied Water, L/kg 450
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 340
260 to 620
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 28
12 to 19
Strength to Weight: Bending, points 23
15 to 20
Thermal Diffusivity, mm2/s 3.9
43
Thermal Shock Resistance, points 25
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0.5 to 1.2
Iron (Fe), % 0 to 3.0
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0 to 0.020
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0 to 0.060
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.0030
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
87.1 to 89