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R30006 Cobalt vs. EN 1.7027 Steel

R30006 cobalt belongs to the cobalt alloys classification, while EN 1.7027 steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is EN 1.7027 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
73
Tensile Strength: Ultimate (UTS), MPa 900
490 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1290
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 15
45
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
8.3

Otherwise Unclassified Properties

Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 7.8
1.4
Embodied Energy, MJ/kg 110
19
Embodied Water, L/kg 500
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 29
17 to 52
Strength to Weight: Bending, points 24
18 to 36
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 26
14 to 43

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.9 to 1.4
0.17 to 0.23
Chromium (Cr), % 27 to 32
0.9 to 1.2
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 0 to 3.0
97.1 to 98.5
Manganese (Mn), % 0
0.6 to 0.9
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Oxygen (O), % 0
0 to 0.0020
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 2.0
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 4.0 to 6.0
0