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EN 2.4964 Cobalt vs. AISI 310 Stainless Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while AISI 310 stainless steel belongs to the iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is AISI 310 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 40
34 to 45
Fatigue Strength, MPa 220
240 to 280
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 86
78
Tensile Strength: Ultimate (UTS), MPa 960
600 to 710
Tensile Strength: Yield (Proof), MPa 390
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1630
1450
Melting Onset (Solidus), °C 1550
1400
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.5

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.8
Embodied Carbon, kg CO2/kg material 9.8
4.3
Embodied Energy, MJ/kg 140
61
Embodied Water, L/kg 450
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
200 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 340
170 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 28
21 to 25
Strength to Weight: Bending, points 23
20 to 22
Thermal Diffusivity, mm2/s 3.9
3.9
Thermal Shock Resistance, points 25
14 to 17

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.25
Chromium (Cr), % 19 to 21
24 to 26
Cobalt (Co), % 46.4 to 58
0
Iron (Fe), % 0 to 3.0
48.2 to 57
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 9.0 to 11
19 to 22
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 14 to 16
0