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EN 1.4951 Stainless Steel vs. 50Cr-50Ni Alloy

EN 1.4951 stainless steel belongs to the iron alloys classification, while 50Cr-50Ni alloy belongs to the otherwise unclassified metals. They have 47% of their average alloy composition in common. 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 EN 1.4951 stainless steel and the bottom bar is 50Cr-50Ni alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 38
5.7
Poisson's Ratio 0.27
0.26
Shear Modulus, GPa 79
84
Tensile Strength: Ultimate (UTS), MPa 630
620
Tensile Strength: Yield (Proof), MPa 220
390

Thermal Properties

Latent Heat of Fusion, J/g 300
350
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 25
50
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.3
7.9
Embodied Energy, MJ/kg 61
110
Embodied Water, L/kg 190
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
31
Resilience: Unit (Modulus of Resilience), kJ/m3 130
350
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 21
20
Thermal Shock Resistance, points 14
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.25
Carbon (C), % 0.040 to 0.080
0 to 0.1
Chromium (Cr), % 24 to 26
48 to 52
Iron (Fe), % 49.1 to 57
0 to 1.0
Manganese (Mn), % 0 to 2.0
0 to 0.3
Nickel (Ni), % 19 to 22
44.5 to 52
Nitrogen (N), % 0 to 0.1
0 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0
0 to 0.5