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R30008 Cobalt vs. EN 1.1233 Steel

R30008 cobalt belongs to the cobalt alloys classification, while EN 1.1233 steel belongs to the iron alloys. There are 19 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 R30008 cobalt and the bottom bar is EN 1.1233 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 83
72
Tensile Strength: Ultimate (UTS), MPa 950 to 1700
680 to 760

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1330
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 95
1.9
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.1
1.4
Embodied Energy, MJ/kg 110
19
Embodied Water, L/kg 400
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 31 to 56
24 to 27
Strength to Weight: Bending, points 25 to 37
22 to 24
Thermal Shock Resistance, points 25 to 44
22 to 24

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0 to 0.0010
0
Carbon (C), % 0 to 0.15
0.52 to 0.6
Chromium (Cr), % 18.5 to 21.5
0
Cobalt (Co), % 39 to 42
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 7.6 to 20
98 to 99.1
Manganese (Mn), % 1.0 to 2.0
0.9 to 1.2
Molybdenum (Mo), % 6.5 to 7.5
0
Nickel (Ni), % 15 to 18
0
Oxygen (O), % 0
0 to 0.0020
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 1.2
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030

Comparable Variants