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EN 1.5024 Steel vs. R30816 Cobalt

EN 1.5024 steel belongs to the iron alloys classification, while R30816 cobalt belongs to the cobalt alloys. There are 21 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 EN 1.5024 steel and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 470
280
Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 72
81
Tensile Strength: Ultimate (UTS), MPa 670 to 1930
1020

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1440
1540
Melting Onset (Solidus), °C 1400
1460
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 50
13
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 7.7
9.1
Embodied Carbon, kg CO2/kg material 1.4
20
Embodied Energy, MJ/kg 19
320
Embodied Water, L/kg 45
440

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 24 to 69
31
Strength to Weight: Bending, points 22 to 45
25
Thermal Diffusivity, mm2/s 14
3.3
Thermal Shock Resistance, points 20 to 58
28

Alloy Composition

Carbon (C), % 0.42 to 0.5
0.32 to 0.42
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
40 to 49.8
Iron (Fe), % 96.7 to 97.6
0 to 5.0
Manganese (Mn), % 0.5 to 0.8
1.0 to 2.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
3.5 to 4.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 1.5 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Tungsten (W), % 0
3.5 to 4.5