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Nickel 693 vs. S31254 Stainless Steel

Nickel 693 belongs to the nickel alloys classification, while S31254 stainless steel belongs to the iron alloys. They have 43% of their average alloy composition in common. 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 S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
40
Fatigue Strength, MPa 230
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Shear Strength, MPa 440
490
Tensile Strength: Ultimate (UTS), MPa 660
720
Tensile Strength: Yield (Proof), MPa 310
330

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 1010
1090
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1310
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 9.1
14
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 60
28
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 9.9
5.5
Embodied Energy, MJ/kg 140
74
Embodied Water, L/kg 320
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
240
Resilience: Unit (Modulus of Resilience), kJ/m3 250
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
25
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 2.3
3.8
Thermal Shock Resistance, points 19
15

Alloy Composition

Aluminum (Al), % 2.5 to 4.0
0
Carbon (C), % 0 to 0.15
0 to 0.020
Chromium (Cr), % 27 to 31
19.5 to 20.5
Copper (Cu), % 0 to 0.5
0.5 to 1.0
Iron (Fe), % 2.5 to 6.0
51.4 to 56.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 6.5
Nickel (Ni), % 53.3 to 67.5
17.5 to 18.5
Niobium (Nb), % 0.5 to 2.5
0
Nitrogen (N), % 0
0.18 to 0.22
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0 to 1.0
0