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EN 2.4964 Cobalt vs. EN 1.5682 Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while EN 1.5682 steel belongs to the iron alloys. There are 25 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 EN 1.5682 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 40
21
Fatigue Strength, MPa 220
400
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
72
Tensile Strength: Ultimate (UTS), MPa 960
770
Tensile Strength: Yield (Proof), MPa 390
570

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1630
1450
Melting Onset (Solidus), °C 1550
1410
Specific Heat Capacity, J/kg-K 400
470
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
8.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
9.8

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.9
Embodied Carbon, kg CO2/kg material 9.8
2.3
Embodied Energy, MJ/kg 140
31
Embodied Water, L/kg 450
63

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
150
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
27
Strength to Weight: Bending, points 23
23
Thermal Shock Resistance, points 25
23

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.13
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 0 to 3.0
88.7 to 91.1
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 9.0 to 11
8.5 to 9.5
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.0050
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0
0 to 0.050