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Nickel 22 vs. S32001 Stainless Steel

Nickel 22 belongs to the nickel alloys classification, while S32001 stainless steel belongs to the iron alloys. They have a modest 27% 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 (3, in this case) are not shown.

For each property being compared, the top bar is nickel 22 and the bottom bar is S32001 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 49
28
Fatigue Strength, MPa 330
370
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 84
78
Shear Strength, MPa 560
450
Tensile Strength: Ultimate (UTS), MPa 790
690
Tensile Strength: Yield (Proof), MPa 360
510

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 990
970
Melting Completion (Liquidus), °C 1390
1420
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 10
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 70
12
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 12
2.6
Embodied Energy, MJ/kg 170
37
Embodied Water, L/kg 300
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
180
Resilience: Unit (Modulus of Resilience), kJ/m3 300
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 25
25
Strength to Weight: Bending, points 21
23
Thermal Diffusivity, mm2/s 2.7
4.0
Thermal Shock Resistance, points 24
19

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.030
Chromium (Cr), % 20 to 22.5
19.5 to 21.5
Cobalt (Co), % 0 to 2.5
0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 2.0 to 6.0
66.6 to 75.5
Manganese (Mn), % 0 to 0.015
4.0 to 6.0
Molybdenum (Mo), % 12.5 to 14.5
0 to 0.6
Nickel (Ni), % 50.8 to 63
1.0 to 3.0
Nitrogen (N), % 0
0.050 to 0.17
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.080
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0 to 0.35
0