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R30816 Cobalt vs. Austenitic Grey Cast Iron

R30816 cobalt belongs to the cobalt alloys classification, while austenitic grey cast iron belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30816 cobalt and the bottom bar is austenitic grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
110 to 210
Elastic (Young's, Tensile) Modulus, GPa 210
180
Poisson's Ratio 0.3
0.29 to 0.3
Shear Modulus, GPa 81
69 to 72
Tensile Strength: Ultimate (UTS), MPa 1020
150 to 230

Thermal Properties

Latent Heat of Fusion, J/g 300
280 to 350
Melting Completion (Liquidus), °C 1540
1340 to 1400
Melting Onset (Solidus), °C 1460
1290 to 1350
Specific Heat Capacity, J/kg-K 420
470 to 490
Thermal Expansion, µm/m-K 12
13 to 14

Otherwise Unclassified Properties

Density, g/cm3 9.1
7.7 to 8.1
Embodied Carbon, kg CO2/kg material 20
3.1 to 4.7
Embodied Energy, MJ/kg 320
43 to 65
Embodied Water, L/kg 440
93 to 120

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
23 to 25
Strength to Weight: Axial, points 31
5.3 to 8.2
Strength to Weight: Bending, points 25
7.9 to 11
Thermal Shock Resistance, points 28
4.5 to 6.5