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Nickel 686 vs. EN 1.4864 Stainless Steel

Nickel 686 belongs to the nickel alloys classification, while EN 1.4864 stainless steel belongs to the iron alloys. They have 54% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is EN 1.4864 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 51
33
Fatigue Strength, MPa 410
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
75
Shear Strength, MPa 560
430
Tensile Strength: Ultimate (UTS), MPa 780
650
Tensile Strength: Yield (Proof), MPa 350
260

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1380
1390
Melting Onset (Solidus), °C 1340
1340
Specific Heat Capacity, J/kg-K 420
480
Thermal Conductivity, W/m-K 9.8
13
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 70
30
Density, g/cm3 9.0
8.0
Embodied Carbon, kg CO2/kg material 12
5.3
Embodied Energy, MJ/kg 170
75
Embodied Water, L/kg 300
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
170
Resilience: Unit (Modulus of Resilience), kJ/m3 280
170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
23
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 2.6
3.3
Thermal Shock Resistance, points 21
17

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.15
Chromium (Cr), % 19 to 23
15 to 17
Iron (Fe), % 0 to 5.0
41.7 to 51
Manganese (Mn), % 0 to 0.75
0 to 2.0
Molybdenum (Mo), % 15 to 17
0
Nickel (Ni), % 49.5 to 63
33 to 37
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.080
1.0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
0