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EN 2.4964 Cobalt vs. SAE-AISI 1015 Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while SAE-AISI 1015 steel belongs to the iron 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 2.4964 cobalt and the bottom bar is SAE-AISI 1015 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 40
20 to 32
Fatigue Strength, MPa 220
170 to 250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
73
Tensile Strength: Ultimate (UTS), MPa 960
390 to 440
Tensile Strength: Yield (Proof), MPa 390
210 to 370

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1630
1470
Melting Onset (Solidus), °C 1550
1420
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
7.9

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.9
Embodied Carbon, kg CO2/kg material 9.8
1.4
Embodied Energy, MJ/kg 140
18
Embodied Water, L/kg 450
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 340
120 to 360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 28
14 to 15
Strength to Weight: Bending, points 23
15 to 16
Thermal Diffusivity, mm2/s 3.9
14
Thermal Shock Resistance, points 25
12 to 14

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.13 to 0.18
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Iron (Fe), % 0 to 3.0
99.13 to 99.57
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.015
0 to 0.050
Tungsten (W), % 14 to 16
0