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Nickel 22 vs. S44537 Stainless Steel

Nickel 22 belongs to the nickel alloys classification, while S44537 stainless steel belongs to the iron alloys. They have a modest 28% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is nickel 22 and the bottom bar is S44537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 49
21
Fatigue Strength, MPa 330
230
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 84
79
Shear Strength, MPa 560
320
Tensile Strength: Ultimate (UTS), MPa 790
510
Tensile Strength: Yield (Proof), MPa 360
360

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 990
1000
Melting Completion (Liquidus), °C 1390
1480
Melting Onset (Solidus), °C 1360
1430
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 10
21
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 70
19
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 12
3.4
Embodied Energy, MJ/kg 170
50
Embodied Water, L/kg 300
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
95
Resilience: Unit (Modulus of Resilience), kJ/m3 300
320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 2.7
5.6
Thermal Shock Resistance, points 24
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.015
0 to 0.030
Chromium (Cr), % 20 to 22.5
20 to 24
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 2.0 to 6.0
69 to 78.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0 to 0.015
0 to 0.8
Molybdenum (Mo), % 12.5 to 14.5
0
Nickel (Ni), % 50.8 to 63
0 to 0.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.020
0 to 0.050
Silicon (Si), % 0 to 0.080
0.1 to 0.6
Sulfur (S), % 0 to 0.020
0 to 0.0060
Titanium (Ti), % 0
0.020 to 0.2
Tungsten (W), % 2.5 to 3.5
1.0 to 3.0
Vanadium (V), % 0 to 0.35
0