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Nickel 242 vs. S21900 Stainless Steel

Nickel 242 belongs to the nickel alloys classification, while S21900 stainless steel belongs to the iron alloys. 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 242 and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 45
50
Fatigue Strength, MPa 300
380
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 84
78
Shear Strength, MPa 570
510
Tensile Strength: Ultimate (UTS), MPa 820
710
Tensile Strength: Yield (Proof), MPa 350
390

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 930
980
Melting Completion (Liquidus), °C 1380
1400
Melting Onset (Solidus), °C 1290
1350
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 11
14
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 75
15
Density, g/cm3 9.0
7.7
Embodied Carbon, kg CO2/kg material 14
3.0
Embodied Energy, MJ/kg 180
43
Embodied Water, L/kg 290
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
300
Resilience: Unit (Modulus of Resilience), kJ/m3 280
380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 25
26
Strength to Weight: Bending, points 21
23
Thermal Diffusivity, mm2/s 3.1
3.8
Thermal Shock Resistance, points 25
15

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 7.0 to 9.0
19 to 21.5
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 2.0
59.4 to 67.4
Manganese (Mn), % 0 to 0.8
8.0 to 10
Molybdenum (Mo), % 24 to 26
0
Nickel (Ni), % 59.3 to 69
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030