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EN 2.4964 Cobalt vs. SAE-AISI 1548 Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while SAE-AISI 1548 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 1548 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 40
11 to 16
Fatigue Strength, MPa 220
270 to 430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
72
Tensile Strength: Ultimate (UTS), MPa 960
730 to 830
Tensile Strength: Yield (Proof), MPa 390
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1630
1460
Melting Onset (Solidus), °C 1550
1420
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.1

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.8
Embodied Carbon, kg CO2/kg material 9.8
1.4
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 450
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
79 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 340
470 to 1280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 28
26 to 30
Strength to Weight: Bending, points 23
23 to 25
Thermal Diffusivity, mm2/s 3.9
14
Thermal Shock Resistance, points 25
23 to 27

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.44 to 0.52
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Iron (Fe), % 0 to 3.0
98 to 98.5
Manganese (Mn), % 0 to 2.0
1.1 to 1.4
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