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R31233 Cobalt vs. R30035 Cobalt

Both R31233 cobalt and R30035 cobalt are cobalt alloys. They have 69% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is R31233 cobalt and the bottom bar is R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
220 to 230
Elongation at Break, % 17
9.0 to 46
Fatigue Strength, MPa 220
170 to 740
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 85
84 to 89
Tensile Strength: Ultimate (UTS), MPa 1020
900 to 1900
Tensile Strength: Yield (Proof), MPa 420
300 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1350
1440
Melting Onset (Solidus), °C 1330
1320
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 12
11
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.7
Embodied Carbon, kg CO2/kg material 8.4
10
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 480
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
160 to 320
Resilience: Unit (Modulus of Resilience), kJ/m3 410
210 to 5920
Stiffness to Weight: Axial, points 14
14 to 15
Stiffness to Weight: Bending, points 23
23 to 24
Strength to Weight: Axial, points 33
29 to 61
Strength to Weight: Bending, points 26
24 to 39
Thermal Diffusivity, mm2/s 3.2
3.0
Thermal Shock Resistance, points 25
23 to 46

Alloy Composition

Boron (B), % 0 to 0.015
0 to 0.015
Carbon (C), % 0.020 to 0.1
0 to 0.025
Chromium (Cr), % 23.5 to 27.5
19 to 21
Cobalt (Co), % 44.7 to 63.3
29.1 to 39
Iron (Fe), % 1.0 to 5.0
0 to 1.0
Manganese (Mn), % 0.1 to 1.5
0 to 0.15
Molybdenum (Mo), % 4.0 to 6.0
9.0 to 10.5
Nickel (Ni), % 7.0 to 11
33 to 37
Nitrogen (N), % 0.030 to 0.12
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.050 to 1.0
0 to 0.15
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0
0 to 1.0
Tungsten (W), % 1.0 to 3.0
0