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N07776 Nickel vs. S21640 Stainless Steel

N07776 nickel belongs to the nickel alloys classification, while S21640 stainless steel belongs to the iron alloys. They have a modest 37% 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 N07776 nickel and the bottom bar is S21640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
46
Fatigue Strength, MPa 220
320
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 79
78
Shear Strength, MPa 470
520
Tensile Strength: Ultimate (UTS), MPa 700
740
Tensile Strength: Yield (Proof), MPa 270
350

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 970
940
Melting Completion (Liquidus), °C 1550
1430
Melting Onset (Solidus), °C 1500
1380
Specific Heat Capacity, J/kg-K 430
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 85
17
Density, g/cm3 8.6
7.7
Embodied Carbon, kg CO2/kg material 15
3.6
Embodied Energy, MJ/kg 210
51
Embodied Water, L/kg 270
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
280
Resilience: Unit (Modulus of Resilience), kJ/m3 180
300
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
27
Strength to Weight: Bending, points 20
23
Thermal Shock Resistance, points 20
16

Alloy Composition

Aluminum (Al), % 0 to 2.0
0
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 12 to 22
17.5 to 19.5
Iron (Fe), % 0 to 24.5
63 to 74.3
Manganese (Mn), % 0 to 1.0
3.5 to 6.5
Molybdenum (Mo), % 9.0 to 15
0.5 to 2.0
Nickel (Ni), % 50 to 60
4.0 to 6.5
Niobium (Nb), % 4.0 to 6.0
0.1 to 1.0
Nitrogen (N), % 0
0.080 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.060
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 1.0
0
Tungsten (W), % 0.5 to 2.5
0