MakeItFrom.com
Menu (ESC)

S21640 Stainless Steel vs. 50Cr-50Ni-Cb Alloy

S21640 stainless steel belongs to the iron alloys classification, while 50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals. They have a modest 25% 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 (12, in this case) are not shown.

For each property being compared, the top bar is S21640 stainless steel and the bottom bar is 50Cr-50Ni-Cb alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 46
5.6
Poisson's Ratio 0.28
0.26
Shear Modulus, GPa 78
84
Tensile Strength: Ultimate (UTS), MPa 740
620
Tensile Strength: Yield (Proof), MPa 350
390

Thermal Properties

Latent Heat of Fusion, J/g 290
350
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 17
60
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.6
9.2
Embodied Energy, MJ/kg 51
130
Embodied Water, L/kg 150
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
30
Resilience: Unit (Modulus of Resilience), kJ/m3 300
370
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
21
Strength to Weight: Bending, points 23
20
Thermal Shock Resistance, points 16
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.25
Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 17.5 to 19.5
47 to 52
Iron (Fe), % 63 to 74.3
0 to 1.0
Manganese (Mn), % 3.5 to 6.5
0 to 0.3
Molybdenum (Mo), % 0.5 to 2.0
0
Nickel (Ni), % 4.0 to 6.5
43.3 to 51.6
Niobium (Nb), % 0.1 to 1.0
1.4 to 1.7
Nitrogen (N), % 0.080 to 0.3
0 to 0.16
Phosphorus (P), % 0 to 0.060
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0 to 0.5