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50Cr-50Ni-Cb Alloy vs. ACI-ASTM CB7Cu-1 Steel

50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals classification, while ACI-ASTM CB7Cu-1 steel belongs to the iron alloys. They have a modest 22% 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 CB7Cu-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 5.6
5.7 to 11
Poisson's Ratio 0.26
0.28
Shear Modulus, GPa 84
76
Tensile Strength: Ultimate (UTS), MPa 620
960 to 1350
Tensile Strength: Yield (Proof), MPa 390
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 60
13
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 9.2
2.6
Embodied Energy, MJ/kg 130
38
Embodied Water, L/kg 350
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 370
1500 to 3590
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
34 to 48
Strength to Weight: Bending, points 20
28 to 35
Thermal Shock Resistance, points 14
32 to 45

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Carbon (C), % 0 to 0.1
0 to 0.070
Chromium (Cr), % 47 to 52
15.5 to 17.7
Copper (Cu), % 0
2.5 to 3.2
Iron (Fe), % 0 to 1.0
72.3 to 78.4
Manganese (Mn), % 0 to 0.3
0 to 0.7
Nickel (Ni), % 43.3 to 51.6
3.6 to 4.6
Niobium (Nb), % 1.4 to 1.7
0 to 0.35
Nitrogen (N), % 0 to 0.16
0 to 0.050
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.5
0