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AISI 418 Stainless Steel vs. N06975 Nickel

AISI 418 stainless steel belongs to the iron alloys classification, while N06975 nickel belongs to the nickel alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 418 stainless steel and the bottom bar is N06975 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
45
Fatigue Strength, MPa 520
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Shear Strength, MPa 680
470
Tensile Strength: Ultimate (UTS), MPa 1100
660
Tensile Strength: Yield (Proof), MPa 850
250

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 770
1000
Melting Completion (Liquidus), °C 1500
1430
Melting Onset (Solidus), °C 1460
1380
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
50
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.9
8.9
Embodied Energy, MJ/kg 41
120
Embodied Water, L/kg 110
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
240
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 38
22
Strength to Weight: Bending, points 29
20
Thermal Shock Resistance, points 40
18

Alloy Composition

Carbon (C), % 0.15 to 0.2
0 to 0.030
Chromium (Cr), % 12 to 14
23 to 26
Copper (Cu), % 0
0.7 to 1.2
Iron (Fe), % 78.5 to 83.6
10.2 to 23.6
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
5.0 to 7.0
Nickel (Ni), % 1.8 to 2.2
47 to 52
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.7 to 1.5
Tungsten (W), % 2.5 to 3.5
0