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S21900 Stainless Steel vs. Nickel 242

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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