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Nickel 693 vs. S44800 Stainless Steel

Nickel 693 belongs to the nickel alloys classification, while S44800 stainless steel belongs to the iron alloys. They have a modest 36% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is nickel 693 and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
23
Fatigue Strength, MPa 230
300
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
82
Shear Strength, MPa 440
370
Tensile Strength: Ultimate (UTS), MPa 660
590
Tensile Strength: Yield (Proof), MPa 310
450

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 1010
1100
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1310
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 9.1
17
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 60
19
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 9.9
3.8
Embodied Energy, MJ/kg 140
52
Embodied Water, L/kg 320
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 250
480
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
21
Strength to Weight: Bending, points 21
20
Thermal Diffusivity, mm2/s 2.3
4.6
Thermal Shock Resistance, points 19
19

Alloy Composition

Aluminum (Al), % 2.5 to 4.0
0
Carbon (C), % 0 to 0.15
0 to 0.010
Chromium (Cr), % 27 to 31
28 to 30
Copper (Cu), % 0 to 0.5
0 to 0.15
Iron (Fe), % 2.5 to 6.0
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), % 53.3 to 67.5
2.0 to 2.5
Niobium (Nb), % 0.5 to 2.5
0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.2
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0 to 1.0
0