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S82121 Stainless Steel vs. N06650 Nickel

S82121 stainless steel belongs to the iron alloys classification, while N06650 nickel belongs to the nickel alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S82121 stainless steel and the bottom bar is N06650 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 28
50
Fatigue Strength, MPa 370
420
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
82
Shear Strength, MPa 470
640
Tensile Strength: Ultimate (UTS), MPa 730
900
Tensile Strength: Yield (Proof), MPa 510
460

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 1020
980
Melting Completion (Liquidus), °C 1430
1500
Melting Onset (Solidus), °C 1380
1450
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
60
Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 2.8
10
Embodied Energy, MJ/kg 40
140
Embodied Water, L/kg 150
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
380
Resilience: Unit (Modulus of Resilience), kJ/m3 660
490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26
29
Strength to Weight: Bending, points 23
24
Thermal Shock Resistance, points 20
24

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.5
Carbon (C), % 0 to 0.035
0 to 0.030
Chromium (Cr), % 21 to 23
19 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0.2 to 1.2
0 to 0.3
Iron (Fe), % 66.7 to 75.4
12 to 16
Manganese (Mn), % 1.0 to 2.5
0 to 0.5
Molybdenum (Mo), % 0.3 to 1.3
9.5 to 12.5
Nickel (Ni), % 2.0 to 4.0
44.4 to 58.9
Niobium (Nb), % 0
0.050 to 0.5
Nitrogen (N), % 0.15 to 0.25
0.050 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010
Tungsten (W), % 0
0.5 to 2.5