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Nickel 686 vs. AISI W2 Steel

Nickel 686 belongs to the nickel alloys classification, while AISI W2 steel belongs to the iron alloys. There are 23 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 686 and the bottom bar is AISI W2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 780
580 to 2400

Thermal Properties

Latent Heat of Fusion, J/g 320
250
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
45
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 70
2.3
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 12
2.0
Embodied Energy, MJ/kg 170
29
Embodied Water, L/kg 300
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
21 to 86
Strength to Weight: Bending, points 21
20 to 51
Thermal Diffusivity, mm2/s 2.6
12
Thermal Shock Resistance, points 21
19 to 80

Alloy Composition

Carbon (C), % 0 to 0.010
0.85 to 1.5
Chromium (Cr), % 19 to 23
0 to 0.15
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0 to 5.0
96.2 to 98.6
Manganese (Mn), % 0 to 0.75
0.35 to 0.74
Molybdenum (Mo), % 15 to 17
0 to 0.1
Nickel (Ni), % 49.5 to 63
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.080
0.1 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
0 to 0.15
Vanadium (V), % 0
0.15 to 0.35