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EN 1.6563 Steel vs. R30155 Cobalt

Both EN 1.6563 steel and R30155 cobalt are iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.6563 steel and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 620 to 1850
850

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 45
12
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
80
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 1.7
9.7
Embodied Energy, MJ/kg 22
150
Embodied Water, L/kg 54
300

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22 to 65
28
Strength to Weight: Bending, points 21 to 43
24
Thermal Diffusivity, mm2/s 12
3.2
Thermal Shock Resistance, points 18 to 54
21

Alloy Composition

Carbon (C), % 0.38 to 0.44
0.080 to 0.16
Chromium (Cr), % 0.7 to 0.9
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 94.9 to 96.5
24.3 to 36.2
Manganese (Mn), % 0.6 to 0.9
1.0 to 2.0
Molybdenum (Mo), % 0.15 to 0.3
2.5 to 3.5
Nickel (Ni), % 1.7 to 2.0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Tantalum (Ta), % 0
0.75 to 1.3
Tungsten (W), % 0
2.0 to 3.0