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R30008 Cobalt vs. EN 1.0566 Steel

R30008 cobalt belongs to the cobalt alloys classification, while EN 1.0566 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 R30008 cobalt and the bottom bar is EN 1.0566 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 1.1 to 73
24
Fatigue Strength, MPa 320 to 530
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 83
73
Tensile Strength: Ultimate (UTS), MPa 950 to 1700
550
Tensile Strength: Yield (Proof), MPa 500 to 1080
370

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 95
2.3
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.1
1.6
Embodied Energy, MJ/kg 110
22
Embodied Water, L/kg 400
50

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 590 to 2720
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 31 to 56
19
Strength to Weight: Bending, points 25 to 37
19
Thermal Shock Resistance, points 25 to 44
17

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.024
Boron (B), % 0 to 0.0010
0
Carbon (C), % 0 to 0.15
0 to 0.18
Chromium (Cr), % 18.5 to 21.5
0 to 0.3
Cobalt (Co), % 39 to 42
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 7.6 to 20
96.2 to 98.9
Manganese (Mn), % 1.0 to 2.0
1.1 to 1.7
Molybdenum (Mo), % 6.5 to 7.5
0 to 0.080
Nickel (Ni), % 15 to 18
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 1.2
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.0080
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.1