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Nickel 80A vs. S44401 Stainless Steel

Nickel 80A belongs to the nickel alloys classification, while S44401 stainless steel belongs to the iron alloys. They have a modest 22% 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 (2, in this case) are not shown.

For each property being compared, the top bar is nickel 80A and the bottom bar is S44401 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
21
Fatigue Strength, MPa 430
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
78
Shear Strength, MPa 660
300
Tensile Strength: Ultimate (UTS), MPa 1040
480
Tensile Strength: Yield (Proof), MPa 710
300

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Mechanical, °C 980
930
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 11
22
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 55
12
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 9.8
2.9
Embodied Energy, MJ/kg 140
40
Embodied Water, L/kg 280
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
90
Resilience: Unit (Modulus of Resilience), kJ/m3 1300
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 35
17
Strength to Weight: Bending, points 27
18
Thermal Diffusivity, mm2/s 2.9
5.9
Thermal Shock Resistance, points 31
17

Alloy Composition

Aluminum (Al), % 0.5 to 1.8
0
Carbon (C), % 0 to 0.1
0 to 0.025
Chromium (Cr), % 18 to 21
17.5 to 19.5
Iron (Fe), % 0 to 3.0
75.1 to 80.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 69.4 to 79.7
0 to 1.0
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 1.8 to 2.7
0.2 to 0.8