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EN 2.4964 Cobalt vs. Grade 702C Zirconium

EN 2.4964 cobalt belongs to the cobalt alloys classification, while grade 702C zirconium belongs to the otherwise unclassified metals. There are 20 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 grade 702C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
97
Elongation at Break, % 40
13
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
36
Tensile Strength: Ultimate (UTS), MPa 960
430
Tensile Strength: Yield (Proof), MPa 390
310

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Specific Heat Capacity, J/kg-K 400
270
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 12
5.7

Otherwise Unclassified Properties

Density, g/cm3 9.6
6.7
Embodied Water, L/kg 450
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
52
Resilience: Unit (Modulus of Resilience), kJ/m3 340
510
Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 25
55

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.1
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0 to 3.0
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.020
0 to 0.010
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 14 to 16
0
Zirconium (Zr), % 0
94.8 to 100