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50Cr-50Ni Alloy vs. S17700 Stainless Steel

50Cr-50Ni alloy belongs to the otherwise unclassified metals classification, while S17700 stainless steel belongs to the iron alloys. 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 (13, in this case) are not shown.

For each property being compared, the top bar is 50Cr-50Ni alloy and the bottom bar is S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 5.7
1.0 to 23
Poisson's Ratio 0.26
0.28
Shear Modulus, GPa 84
76
Tensile Strength: Ultimate (UTS), MPa 620
1180 to 1650
Tensile Strength: Yield (Proof), MPa 390
430 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 50
13
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 7.9
2.8
Embodied Energy, MJ/kg 110
40
Embodied Water, L/kg 350
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
15 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 350
460 to 3750
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
42 to 59
Strength to Weight: Bending, points 20
32 to 40
Thermal Shock Resistance, points 14
39 to 54

Alloy Composition

Aluminum (Al), % 0 to 0.25
0.75 to 1.5
Carbon (C), % 0 to 0.1
0 to 0.090
Chromium (Cr), % 48 to 52
16 to 18
Iron (Fe), % 0 to 1.0
70.5 to 76.8
Manganese (Mn), % 0 to 0.3
0 to 1.0
Nickel (Ni), % 44.5 to 52
6.5 to 7.8
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 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.5
0