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SAE-AISI H10 Steel vs. R30016 Cobalt

SAE-AISI H10 steel belongs to the iron alloys classification, while R30016 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H10 steel and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
85
Tensile Strength: Ultimate (UTS), MPa 680 to 2030
1010

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1470
1360
Melting Onset (Solidus), °C 1420
1270
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 38
15
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
2.0

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 3.4
7.7
Embodied Energy, MJ/kg 48
110
Embodied Water, L/kg 71
500

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 72
33
Strength to Weight: Bending, points 22 to 46
26
Thermal Diffusivity, mm2/s 10
3.9
Thermal Shock Resistance, points 22 to 66
24

Alloy Composition

Carbon (C), % 0.35 to 0.45
0.9 to 1.4
Chromium (Cr), % 3.0 to 3.8
28 to 32
Cobalt (Co), % 0
49.6 to 66.9
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 89.5 to 93.4
0 to 3.0
Manganese (Mn), % 0.25 to 0.7
0.5 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
0 to 1.5
Nickel (Ni), % 0 to 0.3
0 to 3.0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.8 to 1.2
0.2 to 2.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0
3.5 to 5.5
Vanadium (V), % 0.25 to 0.75
0