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EN 2.4964 Cobalt vs. R05252 Alloy

EN 2.4964 cobalt belongs to the cobalt alloys classification, while R05252 alloy belongs to the otherwise unclassified metals. There are 18 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 R05252 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 40
23
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 86
73
Tensile Strength: Ultimate (UTS), MPa 960
310
Tensile Strength: Yield (Proof), MPa 390
220

Thermal Properties

Latent Heat of Fusion, J/g 290
140
Specific Heat Capacity, J/kg-K 400
140
Thermal Expansion, µm/m-K 12
6.7

Otherwise Unclassified Properties

Density, g/cm3 9.6
17
Embodied Water, L/kg 450
600

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
63
Resilience: Unit (Modulus of Resilience), kJ/m3 340
120
Stiffness to Weight: Axial, points 13
6.5
Stiffness to Weight: Bending, points 21
12
Strength to Weight: Axial, points 28
5.2
Strength to Weight: Bending, points 23
6.1
Thermal Shock Resistance, points 25
17

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.010
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 3.0
0 to 0.010
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 9.0 to 11
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0 to 0.0050
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0
88.8 to 91
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 14 to 16
9.0 to 11