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Nickel 686 vs. SAE-AISI 1144 Steel

Nickel 686 belongs to the nickel alloys classification, while SAE-AISI 1144 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is SAE-AISI 1144 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 51
11 to 17
Fatigue Strength, MPa 410
280 to 430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 560
460 to 510
Tensile Strength: Ultimate (UTS), MPa 780
750 to 840
Tensile Strength: Yield (Proof), MPa 350
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 980
400
Melting Completion (Liquidus), °C 1380
1450
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 9.8
51
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 70
1.9
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 12
1.4
Embodied Energy, MJ/kg 170
19
Embodied Water, L/kg 300
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
91 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 280
480 to 1290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
27 to 30
Strength to Weight: Bending, points 21
23 to 25
Thermal Diffusivity, mm2/s 2.6
14
Thermal Shock Resistance, points 21
22 to 24

Alloy Composition

Carbon (C), % 0 to 0.010
0.4 to 0.48
Chromium (Cr), % 19 to 23
0
Iron (Fe), % 0 to 5.0
97.5 to 98
Manganese (Mn), % 0 to 0.75
1.4 to 1.7
Molybdenum (Mo), % 15 to 17
0
Nickel (Ni), % 49.5 to 63
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.080
0
Sulfur (S), % 0 to 0.020
0.24 to 0.33
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
0