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N06985 Nickel vs. AISI 444 Stainless Steel

N06985 nickel belongs to the nickel alloys classification, while AISI 444 stainless steel belongs to the iron alloys. They have 42% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is N06985 nickel and the bottom bar is AISI 444 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
23
Fatigue Strength, MPa 220
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
78
Shear Strength, MPa 480
300
Tensile Strength: Ultimate (UTS), MPa 690
470
Tensile Strength: Yield (Proof), MPa 260
310

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 990
930
Melting Completion (Liquidus), °C 1350
1460
Melting Onset (Solidus), °C 1260
1420
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 10
23
Thermal Expansion, µm/m-K 15
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 55
15
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.8
3.4
Embodied Energy, MJ/kg 120
47
Embodied Water, L/kg 270
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
95
Resilience: Unit (Modulus of Resilience), kJ/m3 160
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 23
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 2.6
6.2
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.025
Chromium (Cr), % 21 to 23.5
17.5 to 19.5
Cobalt (Co), % 0 to 5.0
0
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 18 to 21
73.3 to 80.8
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 8.0
1.8 to 2.5
Nickel (Ni), % 35.9 to 53.5
0 to 1.0
Niobium (Nb), % 0 to 0.5
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8
Tungsten (W), % 0 to 1.5
0