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S40977 Stainless Steel vs. N06920 Nickel

S40977 stainless steel belongs to the iron alloys classification, while N06920 nickel belongs to the nickel alloys. They have a modest 32% 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 S40977 stainless steel and the bottom bar is N06920 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 21
39
Fatigue Strength, MPa 200
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
82
Shear Strength, MPa 320
500
Tensile Strength: Ultimate (UTS), MPa 510
730
Tensile Strength: Yield (Proof), MPa 310
270

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 720
990
Melting Completion (Liquidus), °C 1440
1500
Melting Onset (Solidus), °C 1400
1440
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 25
11
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
55
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 1.9
9.4
Embodied Energy, MJ/kg 27
130
Embodied Water, L/kg 97
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
230
Resilience: Unit (Modulus of Resilience), kJ/m3 250
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 6.7
2.8
Thermal Shock Resistance, points 18
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 10.5 to 12.5
20.5 to 23
Cobalt (Co), % 0
0 to 5.0
Iron (Fe), % 83.9 to 89.2
17 to 20
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0.3 to 1.0
36.9 to 53.5
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
1.0 to 3.0