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EN 2.4964 Cobalt vs. Automotive Grey Cast Iron

EN 2.4964 cobalt belongs to the cobalt alloys classification, while automotive grey cast iron belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 2.4964 cobalt and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
180
Elongation at Break, % 40
9.6 to 14
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
69 to 70
Tensile Strength: Ultimate (UTS), MPa 960
140 to 290
Tensile Strength: Yield (Proof), MPa 390
94 to 200

Thermal Properties

Latent Heat of Fusion, J/g 290
260 to 280
Melting Completion (Liquidus), °C 1630
1380 to 1390
Melting Onset (Solidus), °C 1550
1340 to 1350
Specific Heat Capacity, J/kg-K 400
490
Thermal Conductivity, W/m-K 15
41 to 43
Thermal Expansion, µm/m-K 12
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.8 to 9.1

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 9.8
1.5 to 1.7
Embodied Energy, MJ/kg 140
21 to 24
Embodied Water, L/kg 450
44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
18 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 340
25 to 110
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 28
5.2 to 11
Strength to Weight: Bending, points 23
8.0 to 13
Thermal Diffusivity, mm2/s 3.9
11 to 12
Thermal Shock Resistance, points 25
4.2 to 8.6