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R30006 Cobalt vs. SAE-AISI A10 Steel

R30006 cobalt belongs to the cobalt alloys classification, while SAE-AISI A10 steel belongs to the iron alloys. There are 22 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 R30006 cobalt and the bottom bar is SAE-AISI A10 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 85
72
Tensile Strength: Ultimate (UTS), MPa 900
810 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1290
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
9.0

Otherwise Unclassified Properties

Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 7.8
2.1
Embodied Energy, MJ/kg 110
27
Embodied Water, L/kg 500
56

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 29
29 to 73
Strength to Weight: Bending, points 24
25 to 46
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 26
27 to 68

Alloy Composition

Carbon (C), % 0.9 to 1.4
1.3 to 1.5
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 3.0
90.8 to 93.4
Manganese (Mn), % 0
1.6 to 2.1
Molybdenum (Mo), % 0 to 1.0
1.3 to 1.8
Nickel (Ni), % 0 to 3.0
1.6 to 2.1
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 2.0
1.0 to 1.5
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 4.0 to 6.0
0