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50Cr-50Ni Alloy vs. ACI-ASTM CH20 Steel

50Cr-50Ni alloy belongs to the otherwise unclassified metals classification, while ACI-ASTM CH20 steel belongs to the iron alloys. They have a modest 39% 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 (11, in this case) are not shown.

For each property being compared, the top bar is 50Cr-50Ni alloy and the bottom bar is ACI-ASTM CH20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 5.7
38
Poisson's Ratio 0.26
0.27
Shear Modulus, GPa 84
78
Tensile Strength: Ultimate (UTS), MPa 620
610
Tensile Strength: Yield (Proof), MPa 390
350

Thermal Properties

Latent Heat of Fusion, J/g 350
310
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 15
15

Otherwise Unclassified Properties

Base Metal Price, % relative 50
20
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 7.9
3.7
Embodied Energy, MJ/kg 110
53
Embodied Water, L/kg 350
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
200
Resilience: Unit (Modulus of Resilience), kJ/m3 350
300
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
22
Strength to Weight: Bending, points 20
21
Thermal Shock Resistance, points 14
15

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Carbon (C), % 0 to 0.1
0 to 0.2
Chromium (Cr), % 48 to 52
22 to 26
Iron (Fe), % 0 to 1.0
54.7 to 66
Manganese (Mn), % 0 to 0.3
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 44.5 to 52
12 to 15
Nitrogen (N), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.040
Titanium (Ti), % 0 to 0.5
0