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50Cr-50Ni Alloy vs. EN 1.4318 Stainless Steel

50Cr-50Ni alloy belongs to the otherwise unclassified metals classification, while EN 1.4318 stainless steel belongs to the iron alloys. They have a modest 26% 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 (13, in this case) are not shown.

For each property being compared, the top bar is 50Cr-50Ni alloy and the bottom bar is EN 1.4318 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 5.7
44
Poisson's Ratio 0.26
0.28
Shear Modulus, GPa 84
77
Tensile Strength: Ultimate (UTS), MPa 620
740
Tensile Strength: Yield (Proof), MPa 390
380

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 50
13
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.8
Embodied Energy, MJ/kg 110
39
Embodied Water, L/kg 350
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
280
Resilience: Unit (Modulus of Resilience), kJ/m3 350
360
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
27
Strength to Weight: Bending, points 20
23
Thermal Shock Resistance, points 14
17

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 48 to 52
16.5 to 18.5
Iron (Fe), % 0 to 1.0
70.2 to 77.4
Manganese (Mn), % 0 to 0.3
0 to 2.0
Nickel (Ni), % 44.5 to 52
6.0 to 8.0
Nitrogen (N), % 0 to 0.3
0.1 to 0.2
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0 to 0.5
0