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R30075 Cobalt vs. Monel R-405

R30075 cobalt belongs to the cobalt alloys classification, while Monel R-405 belongs to the nickel 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 R30075 cobalt and the bottom bar is Monel R-405.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210 to 250
160
Elongation at Break, % 12
9.1 to 39
Fatigue Strength, MPa 250 to 840
210 to 250
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 82 to 98
62
Tensile Strength: Ultimate (UTS), MPa 780 to 1280
540 to 630
Tensile Strength: Yield (Proof), MPa 480 to 840
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Melting Completion (Liquidus), °C 1360
1350
Melting Onset (Solidus), °C 1290
1300
Specific Heat Capacity, J/kg-K 450
430
Thermal Conductivity, W/m-K 13
23
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.4

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 8.1
7.9
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 530
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 140
49 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1410
120 to 370
Stiffness to Weight: Axial, points 14 to 17
10
Stiffness to Weight: Bending, points 24 to 25
21
Strength to Weight: Axial, points 26 to 42
17 to 20
Strength to Weight: Bending, points 22 to 31
17 to 18
Thermal Diffusivity, mm2/s 3.5
5.9
Thermal Shock Resistance, points 21 to 29
17 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.35
0 to 0.3
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 58.7 to 68
0
Copper (Cu), % 0
28 to 34
Iron (Fe), % 0 to 0.75
0 to 2.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 0.5
63 to 72
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.010
0.025 to 0.060
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0 to 0.2
0

Comparable Variants