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EN 1.5535 Steel vs. EN 2.4964 Cobalt

EN 1.5535 steel belongs to the iron alloys classification, while EN 2.4964 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.5535 steel and the bottom bar is EN 2.4964 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 11 to 22
40
Fatigue Strength, MPa 210 to 320
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
86
Tensile Strength: Ultimate (UTS), MPa 450 to 1490
960
Tensile Strength: Yield (Proof), MPa 300 to 500
390

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1460
1630
Melting Onset (Solidus), °C 1420
1550
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 50
15
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
1.8

Otherwise Unclassified Properties

Density, g/cm3 7.8
9.6
Embodied Carbon, kg CO2/kg material 1.4
9.8
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 48
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 250
310
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 680
340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 16 to 53
28
Strength to Weight: Bending, points 17 to 37
23
Thermal Diffusivity, mm2/s 13
3.9
Thermal Shock Resistance, points 13 to 44
25

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.25
0.050 to 0.15
Chromium (Cr), % 0 to 0.3
19 to 21
Cobalt (Co), % 0
46.4 to 58
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.6 to 98.9
0 to 3.0
Manganese (Mn), % 0.9 to 1.2
0 to 2.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.015
Tungsten (W), % 0
14 to 16