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R31233 Cobalt vs. SAE-AISI 1060 Steel

R31233 cobalt belongs to the cobalt alloys classification, while SAE-AISI 1060 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 R31233 cobalt and the bottom bar is SAE-AISI 1060 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 17
10 to 13
Fatigue Strength, MPa 220
260 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 85
72
Tensile Strength: Ultimate (UTS), MPa 1020
620 to 740
Tensile Strength: Yield (Proof), MPa 420
400 to 540

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 12
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
9.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
11

Otherwise Unclassified Properties

Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 8.4
1.4
Embodied Energy, MJ/kg 110
19
Embodied Water, L/kg 480
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
58 to 82
Resilience: Unit (Modulus of Resilience), kJ/m3 410
430 to 790
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 33
22 to 26
Strength to Weight: Bending, points 26
21 to 23
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 25
20 to 24

Alloy Composition

Boron (B), % 0 to 0.015
0
Carbon (C), % 0.020 to 0.1
0.55 to 0.65
Chromium (Cr), % 23.5 to 27.5
0
Cobalt (Co), % 44.7 to 63.3
0
Iron (Fe), % 1.0 to 5.0
98.4 to 98.9
Manganese (Mn), % 0.1 to 1.5
0.6 to 0.9
Molybdenum (Mo), % 4.0 to 6.0
0
Nickel (Ni), % 7.0 to 11
0
Nitrogen (N), % 0.030 to 0.12
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.050 to 1.0
0
Sulfur (S), % 0 to 0.020
0 to 0.050
Tungsten (W), % 1.0 to 3.0
0