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R30001 Cobalt vs. EN 1.0591 Cast Steel

R30001 cobalt belongs to the cobalt alloys classification, while EN 1.0591 cast steel belongs to the iron alloys. There are 23 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 R30001 cobalt and the bottom bar is EN 1.0591 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 1.0
19
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 86
73
Tensile Strength: Ultimate (UTS), MPa 620
620

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Melting Completion (Liquidus), °C 1530
1470
Melting Onset (Solidus), °C 1260
1430
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 15
53
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.9

Otherwise Unclassified Properties

Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 8.9
1.4
Embodied Energy, MJ/kg 130
18
Embodied Water, L/kg 460
45

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 3.7
14
Thermal Shock Resistance, points 19
20

Alloy Composition

Carbon (C), % 2.0 to 3.0
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 43 to 59
0
Iron (Fe), % 0 to 3.0
99.935 to 100
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 11 to 13
0