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EN 2.4964 Cobalt vs. SAE-AISI O6 Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while SAE-AISI O6 steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is SAE-AISI O6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
71
Tensile Strength: Ultimate (UTS), MPa 960
670 to 2070

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1630
1430
Melting Onset (Solidus), °C 1550
1390
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 15
43
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.6

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.7
Embodied Carbon, kg CO2/kg material 9.8
1.5
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 450
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 28
24 to 74
Strength to Weight: Bending, points 23
22 to 47
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 25
22 to 69

Alloy Composition

Carbon (C), % 0.050 to 0.15
1.3 to 1.6
Chromium (Cr), % 19 to 21
0 to 0.3
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 3.0
94.6 to 97.7
Manganese (Mn), % 0 to 2.0
0.3 to 1.1
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 9.0 to 11
0 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.4
0.55 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 14 to 16
0