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R30008 Cobalt vs. EN 1.1061 Steel

R30008 cobalt belongs to the cobalt alloys classification, while EN 1.1061 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 1.1061 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
530 to 1810

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
1.8
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
46

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 31 to 56
19 to 64
Strength to Weight: Bending, points 25 to 37
19 to 42
Thermal Shock Resistance, points 25 to 44
17 to 58

Alloy Composition

Boron (B), % 0 to 0.0010
0
Carbon (C), % 0 to 0.15
0.42 to 0.5
Chromium (Cr), % 18.5 to 21.5
0
Cobalt (Co), % 39 to 42
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 7.6 to 20
98.1 to 99.06
Manganese (Mn), % 1.0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 6.5 to 7.5
0
Nickel (Ni), % 15 to 18
0
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 1.2
0 to 0.3
Sulfur (S), % 0 to 0.015
0.020 to 0.035