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S21640 Stainless Steel vs. N10276 Nickel

S21640 stainless steel belongs to the iron alloys classification, while N10276 nickel belongs to the nickel alloys. They have a modest 28% 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 (3, in this case) are not shown.

For each property being compared, the top bar is S21640 stainless steel and the bottom bar is N10276 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 46
47
Fatigue Strength, MPa 320
280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
84
Shear Strength, MPa 520
550
Tensile Strength: Ultimate (UTS), MPa 740
780
Tensile Strength: Yield (Proof), MPa 350
320

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 940
960
Melting Completion (Liquidus), °C 1430
1370
Melting Onset (Solidus), °C 1380
1320
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 15
9.1
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
1.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
70
Density, g/cm3 7.7
9.1
Embodied Carbon, kg CO2/kg material 3.6
13
Embodied Energy, MJ/kg 51
170
Embodied Water, L/kg 150
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
300
Resilience: Unit (Modulus of Resilience), kJ/m3 300
230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 27
24
Strength to Weight: Bending, points 23
21
Thermal Diffusivity, mm2/s 4.0
2.4
Thermal Shock Resistance, points 16
23

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.010
Chromium (Cr), % 17.5 to 19.5
14.5 to 16.5
Cobalt (Co), % 0
0 to 2.5
Iron (Fe), % 63 to 74.3
4.0 to 7.0
Manganese (Mn), % 3.5 to 6.5
0 to 0.010
Molybdenum (Mo), % 0.5 to 2.0
15 to 17
Nickel (Ni), % 4.0 to 6.5
51 to 63.5
Niobium (Nb), % 0.1 to 1.0
0
Nitrogen (N), % 0.080 to 0.3
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.0 to 4.5
Vanadium (V), % 0
0 to 0.35