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R31233 Cobalt vs. SAE-AISI H24 Steel

R31233 cobalt belongs to the cobalt alloys classification, while SAE-AISI H24 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R31233 cobalt and the bottom bar is SAE-AISI H24 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 85
78
Tensile Strength: Ultimate (UTS), MPa 1020
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Melting Completion (Liquidus), °C 1350
1750
Melting Onset (Solidus), °C 1330
1700
Specific Heat Capacity, J/kg-K 440
420
Thermal Conductivity, W/m-K 12
27
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 8.6
9.1
Embodied Carbon, kg CO2/kg material 8.4
6.1
Embodied Energy, MJ/kg 110
93
Embodied Water, L/kg 480
78

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 33
22 to 61
Strength to Weight: Bending, points 26
20 to 39
Thermal Diffusivity, mm2/s 3.2
6.9
Thermal Shock Resistance, points 25
22 to 61

Alloy Composition

Boron (B), % 0 to 0.015
0
Carbon (C), % 0.020 to 0.1
0.42 to 0.53
Chromium (Cr), % 23.5 to 27.5
2.5 to 3.5
Cobalt (Co), % 44.7 to 63.3
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 1.0 to 5.0
78 to 82.4
Manganese (Mn), % 0.1 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 4.0 to 6.0
0
Nickel (Ni), % 7.0 to 11
0 to 0.3
Nitrogen (N), % 0.030 to 0.12
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.050 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.0 to 3.0
14 to 16
Vanadium (V), % 0
0.4 to 0.6