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Nickel 693 vs. AISI 304N Stainless Steel

Nickel 693 belongs to the nickel alloys classification, while AISI 304N stainless steel belongs to the iron alloys. They have a modest 33% 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 (5, in this case) are not shown.

For each property being compared, the top bar is nickel 693 and the bottom bar is AISI 304N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
9.1 to 45
Fatigue Strength, MPa 230
220 to 440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 440
420 to 700
Tensile Strength: Ultimate (UTS), MPa 660
620 to 1180
Tensile Strength: Yield (Proof), MPa 310
270 to 850

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 1010
960
Melting Completion (Liquidus), °C 1350
1420
Melting Onset (Solidus), °C 1310
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 9.1
16
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 60
15
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 9.9
3.0
Embodied Energy, MJ/kg 140
43
Embodied Water, L/kg 320
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
98 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 250
180 to 1830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
22 to 42
Strength to Weight: Bending, points 21
21 to 32
Thermal Diffusivity, mm2/s 2.3
4.2
Thermal Shock Resistance, points 19
14 to 26

Alloy Composition

Aluminum (Al), % 2.5 to 4.0
0
Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 27 to 31
18 to 20
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 2.5 to 6.0
66.4 to 73.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 53.3 to 67.5
8.0 to 10.5
Niobium (Nb), % 0.5 to 2.5
0
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 1.0
0