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S21900 Stainless Steel vs. N06603 Nickel

S21900 stainless steel belongs to the iron alloys classification, while N06603 nickel belongs to the nickel alloys. They have a modest 37% 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 S21900 stainless steel and the bottom bar is N06603 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
28
Fatigue Strength, MPa 380
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Shear Strength, MPa 510
480
Tensile Strength: Ultimate (UTS), MPa 710
740
Tensile Strength: Yield (Proof), MPa 390
340

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 980
1000
Melting Completion (Liquidus), °C 1400
1340
Melting Onset (Solidus), °C 1350
1300
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
11
Thermal Expansion, µm/m-K 17
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 15
50
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 3.0
8.4
Embodied Energy, MJ/kg 43
120
Embodied Water, L/kg 160
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
170
Resilience: Unit (Modulus of Resilience), kJ/m3 380
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
25
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.8
2.9
Thermal Shock Resistance, points 15
20

Alloy Composition

Aluminum (Al), % 0
2.4 to 3.0
Carbon (C), % 0 to 0.080
0.2 to 0.4
Chromium (Cr), % 19 to 21.5
24 to 26
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 59.4 to 67.4
8.0 to 11
Manganese (Mn), % 8.0 to 10
0 to 0.15
Nickel (Ni), % 5.5 to 7.5
57.7 to 65.6
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.2
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.010 to 0.25
Yttrium (Y), % 0
0.010 to 0.15
Zinc (Zn), % 0
0.010 to 0.1