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EN 2.4964 Cobalt vs. S42010 Stainless Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while S42010 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is S42010 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 40
18
Fatigue Strength, MPa 220
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 86
76
Tensile Strength: Ultimate (UTS), MPa 960
590
Tensile Strength: Yield (Proof), MPa 390
350

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1630
1440
Melting Onset (Solidus), °C 1550
1400
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 15
29
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
3.2

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.7
Embodied Carbon, kg CO2/kg material 9.8
2.2
Embodied Energy, MJ/kg 140
30
Embodied Water, L/kg 450
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
95
Resilience: Unit (Modulus of Resilience), kJ/m3 340
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 28
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 3.9
7.9
Thermal Shock Resistance, points 25
21

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.15 to 0.3
Chromium (Cr), % 19 to 21
13.5 to 15
Cobalt (Co), % 46.4 to 58
0
Iron (Fe), % 0 to 3.0
80.9 to 85.6
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.85
Nickel (Ni), % 9.0 to 11
0.35 to 0.85
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 14 to 16
0