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EN 2.4964 Cobalt vs. EN 1.0644 Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while EN 1.0644 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 EN 1.0644 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 40
17
Fatigue Strength, MPa 220
380
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
73
Tensile Strength: Ultimate (UTS), MPa 960
690
Tensile Strength: Yield (Proof), MPa 390
570

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1630
1460
Melting Onset (Solidus), °C 1550
1420
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 15
47
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
8.5

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.8
Embodied Carbon, kg CO2/kg material 9.8
1.8
Embodied Energy, MJ/kg 140
24
Embodied Water, L/kg 450
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
110
Resilience: Unit (Modulus of Resilience), kJ/m3 340
870
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 28
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.9
13
Thermal Shock Resistance, points 25
22

Alloy Composition

Aluminum (Al), % 0
0.010 to 0.050
Carbon (C), % 0.050 to 0.15
0.16 to 0.22
Chromium (Cr), % 19 to 21
0 to 0.3
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 0 to 3.0
96.1 to 98.4
Manganese (Mn), % 0 to 2.0
1.3 to 1.7
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 9.0 to 11
0 to 0.4
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.4
0.1 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.035
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0
0.080 to 0.15