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EN 2.4964 Cobalt vs. EN 1.7361 Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while EN 1.7361 steel belongs to the iron alloys. There are 27 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 EN 1.7361 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 40
11
Fatigue Strength, MPa 220
480
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
74
Tensile Strength: Ultimate (UTS), MPa 960
1010
Tensile Strength: Yield (Proof), MPa 390
780

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
41
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.8

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.8
Embodied Carbon, kg CO2/kg material 9.8
1.7
Embodied Energy, MJ/kg 140
22
Embodied Water, L/kg 450
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
110
Resilience: Unit (Modulus of Resilience), kJ/m3 340
1590
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 28
36
Strength to Weight: Bending, points 23
29
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 25
29

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.28 to 0.35
Chromium (Cr), % 19 to 21
2.8 to 3.3
Cobalt (Co), % 46.4 to 58
0
Iron (Fe), % 0 to 3.0
94.1 to 96.2
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.3 to 0.5
Nickel (Ni), % 9.0 to 11
0 to 0.6
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035
Tungsten (W), % 14 to 16
0