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S40920 Stainless Steel vs. 50Cr-50Ni-Cb Alloy

S40920 stainless steel belongs to the iron alloys classification, while 50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals. 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 S40920 stainless steel and the bottom bar is 50Cr-50Ni-Cb alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22
5.6
Poisson's Ratio 0.28
0.26
Shear Modulus, GPa 75
84
Tensile Strength: Ultimate (UTS), MPa 430
620
Tensile Strength: Yield (Proof), MPa 190
390

Thermal Properties

Latent Heat of Fusion, J/g 270
350
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
15

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
60
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.0
9.2
Embodied Energy, MJ/kg 28
130
Embodied Water, L/kg 94
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
30
Resilience: Unit (Modulus of Resilience), kJ/m3 97
370
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
21
Strength to Weight: Bending, points 16
20
Thermal Shock Resistance, points 15
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.25
Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 10.5 to 11.7
47 to 52
Iron (Fe), % 85.1 to 89.4
0 to 1.0
Manganese (Mn), % 0 to 1.0
0 to 0.3
Nickel (Ni), % 0 to 0.5
43.3 to 51.6
Niobium (Nb), % 0 to 0.1
1.4 to 1.7
Nitrogen (N), % 0 to 0.030
0 to 0.16
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0.15 to 0.5
0 to 0.5