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Monel 400 vs. R30006 Cobalt

Monel 400 belongs to the nickel alloys classification, while R30006 cobalt belongs to the cobalt alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is Monel 400 and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
220
Elongation at Break, % 20 to 40
1.0
Fatigue Strength, MPa 230 to 290
260
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
85
Tensile Strength: Ultimate (UTS), MPa 540 to 780
900
Tensile Strength: Yield (Proof), MPa 210 to 590
540

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1350
1400
Melting Onset (Solidus), °C 1300
1290
Specific Heat Capacity, J/kg-K 430
450
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
1.7

Otherwise Unclassified Properties

Calomel Potential, mV -80
-250
Density, g/cm3 8.9
8.6
Embodied Carbon, kg CO2/kg material 7.9
7.8
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 250
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
7.8
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
670
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 17 to 25
29
Strength to Weight: Bending, points 17 to 21
24
Thermal Diffusivity, mm2/s 6.1
3.9
Thermal Shock Resistance, points 17 to 25
26

Alloy Composition

Carbon (C), % 0 to 0.3
0.9 to 1.4
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
48.6 to 68.1
Copper (Cu), % 28 to 34
0
Iron (Fe), % 0 to 2.5
0 to 3.0
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 63 to 72
0 to 3.0
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.024
0
Tungsten (W), % 0
4.0 to 6.0