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Nickel 80A vs. S44800 Stainless Steel

Nickel 80A belongs to the nickel alloys classification, while S44800 stainless steel belongs to the iron alloys. They have a modest 24% 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 (5, in this case) are not shown.

For each property being compared, the top bar is nickel 80A and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22
23
Fatigue Strength, MPa 430
300
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
82
Shear Strength, MPa 660
370
Tensile Strength: Ultimate (UTS), MPa 1040
590
Tensile Strength: Yield (Proof), MPa 710
450

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 11
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 55
19
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 9.8
3.8
Embodied Energy, MJ/kg 140
52
Embodied Water, L/kg 280
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1300
480
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 35
21
Strength to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 2.9
4.6
Thermal Shock Resistance, points 31
19

Alloy Composition

Aluminum (Al), % 0.5 to 1.8
0
Carbon (C), % 0 to 0.1
0 to 0.010
Chromium (Cr), % 18 to 21
28 to 30
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 0 to 3.0
62.6 to 66.5
Manganese (Mn), % 0 to 1.0
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 69.4 to 79.7
2.0 to 2.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 1.8 to 2.7
0