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S21904 Stainless Steel vs. N08026 Nickel

S21904 stainless steel belongs to the iron alloys classification, while N08026 nickel belongs to the nickel alloys. They have 59% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S21904 stainless steel and the bottom bar is N08026 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17 to 51
34
Fatigue Strength, MPa 380 to 550
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
80
Shear Strength, MPa 510 to 620
410
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
620
Tensile Strength: Yield (Proof), MPa 390 to 910
270

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Mechanical, °C 980
990
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1380
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 14
12
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
41
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 3.0
7.2
Embodied Energy, MJ/kg 43
98
Embodied Water, L/kg 160
240

Common Calculations

PREN (Pitting Resistance) 25
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
170
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 36
21
Strength to Weight: Bending, points 23 to 29
20
Thermal Diffusivity, mm2/s 3.8
3.2
Thermal Shock Resistance, points 15 to 21
15

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 19 to 21.5
22 to 26
Copper (Cu), % 0
2.0 to 4.0
Iron (Fe), % 59.5 to 67.4
24.4 to 37.9
Manganese (Mn), % 8.0 to 10
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 6.7
Nickel (Ni), % 5.5 to 7.5
33 to 37.2
Nitrogen (N), % 0.15 to 0.4
0.1 to 0.16
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030