MakeItFrom.com
Menu (ESC)

50Cr-50Ni Alloy vs. R31233 Cobalt

50Cr-50Ni alloy belongs to the otherwise unclassified metals classification, while R31233 cobalt belongs to the cobalt alloys. They have a modest 36% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is 50Cr-50Ni alloy and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 5.7
17
Poisson's Ratio 0.26
0.29
Shear Modulus, GPa 84
85
Tensile Strength: Ultimate (UTS), MPa 620
1020
Tensile Strength: Yield (Proof), MPa 390
420

Thermal Properties

Latent Heat of Fusion, J/g 350
320
Specific Heat Capacity, J/kg-K 490
440
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Density, g/cm3 8.0
8.6
Embodied Carbon, kg CO2/kg material 7.9
8.4
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 350
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
140
Resilience: Unit (Modulus of Resilience), kJ/m3 350
410
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21
33
Strength to Weight: Bending, points 20
26
Thermal Shock Resistance, points 14
25

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Boron (B), % 0
0 to 0.015
Carbon (C), % 0 to 0.1
0.020 to 0.1
Chromium (Cr), % 48 to 52
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Iron (Fe), % 0 to 1.0
1.0 to 5.0
Manganese (Mn), % 0 to 0.3
0.1 to 1.5
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 44.5 to 52
7.0 to 11
Nitrogen (N), % 0 to 0.3
0.030 to 0.12
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 1.0
0.050 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0 to 0.5
0
Tungsten (W), % 0
1.0 to 3.0