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EN 2.4964 Cobalt vs. SAE-AISI 1070 Steel

EN 2.4964 cobalt belongs to the cobalt alloys classification, while SAE-AISI 1070 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 1070 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 40
10 to 13
Fatigue Strength, MPa 220
270 to 350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 86
72
Tensile Strength: Ultimate (UTS), MPa 960
640 to 760
Tensile Strength: Yield (Proof), MPa 390
420 to 560

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
50
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
10
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
12

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
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
59 to 86
Resilience: Unit (Modulus of Resilience), kJ/m3 340
470 to 850
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 28
23 to 27
Strength to Weight: Bending, points 23
21 to 24
Thermal Diffusivity, mm2/s 3.9
14
Thermal Shock Resistance, points 25
21 to 25

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.65 to 0.75
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 58
0
Iron (Fe), % 0 to 3.0
98.3 to 98.8
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
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