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50Cr-50Ni-Cb Alloy vs. ACI-ASTM CD3MWCuN Steel

50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals classification, while ACI-ASTM CD3MWCuN steel belongs to the iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is 50Cr-50Ni-Cb alloy and the bottom bar is ACI-ASTM CD3MWCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 5.6
29
Poisson's Ratio 0.26
0.27
Shear Modulus, GPa 84
80
Tensile Strength: Ultimate (UTS), MPa 620
790
Tensile Strength: Yield (Proof), MPa 390
500

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 60
22
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 9.2
4.2
Embodied Energy, MJ/kg 130
58
Embodied Water, L/kg 350
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
200
Resilience: Unit (Modulus of Resilience), kJ/m3 370
620
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
28
Strength to Weight: Bending, points 20
24
Thermal Shock Resistance, points 14
22

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 47 to 52
24 to 26
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 0 to 1.0
56.6 to 65.3
Manganese (Mn), % 0 to 0.3
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 43.3 to 51.6
6.5 to 8.5
Niobium (Nb), % 1.4 to 1.7
0
Nitrogen (N), % 0 to 0.16
0.2 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0 to 0.5
0
Tungsten (W), % 0
0.5 to 1.0