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EN 1.3537 Steel vs. R31539 Cobalt

EN 1.3537 steel belongs to the iron alloys classification, while R31539 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.3537 steel and the bottom bar is R31539 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
86
Tensile Strength: Ultimate (UTS), MPa 620 to 730
1000 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Melting Completion (Liquidus), °C 1450
1360
Melting Onset (Solidus), °C 1410
1290
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 43
13
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.1

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.5
8.2
Embodied Energy, MJ/kg 21
110
Embodied Water, L/kg 54
530

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 26
33 to 44
Strength to Weight: Bending, points 21 to 23
27 to 32
Thermal Diffusivity, mm2/s 12
3.5
Thermal Shock Resistance, points 18 to 22
24 to 32

Alloy Composition

Aluminum (Al), % 0 to 0.050
0.3 to 1.0
Carbon (C), % 0.93 to 1.1
0 to 0.14
Chromium (Cr), % 1.7 to 2.0
26 to 30
Cobalt (Co), % 0
57.7 to 68.7
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.4 to 97.8
0 to 0.75
Lanthanum (La), % 0
0.030 to 0.2
Manganese (Mn), % 0.25 to 0.45
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.3
5.0 to 7.0
Nickel (Ni), % 0
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Oxygen (O), % 0 to 0.0015
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.15 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0