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EN 1.5682 Steel vs. R31539 Cobalt

EN 1.5682 steel belongs to the iron alloys classification, while R31539 cobalt belongs to the cobalt alloys. There are 25 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 EN 1.5682 steel and the bottom bar is R31539 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 21
13 to 22
Fatigue Strength, MPa 400
310 to 480
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
86
Tensile Strength: Ultimate (UTS), MPa 770
1000 to 1340
Tensile Strength: Yield (Proof), MPa 570
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1450
1360
Melting Onset (Solidus), °C 1410
1290
Specific Heat Capacity, J/kg-K 470
450
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
2.1

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 2.3
8.2
Embodied Energy, MJ/kg 31
110
Embodied Water, L/kg 63
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
140 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 870
780 to 2000
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27
33 to 44
Strength to Weight: Bending, points 23
27 to 32
Thermal Shock Resistance, points 23
24 to 32

Alloy Composition

Aluminum (Al), % 0
0.3 to 1.0
Carbon (C), % 0 to 0.13
0 to 0.14
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
57.7 to 68.7
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 88.7 to 91.1
0 to 0.75
Lanthanum (La), % 0
0.030 to 0.2
Manganese (Mn), % 0.3 to 0.8
0 to 1.0
Molybdenum (Mo), % 0 to 0.1
5.0 to 7.0
Nickel (Ni), % 8.5 to 9.5
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.0050
0
Vanadium (V), % 0 to 0.050
0