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Nickel 686 vs. EN 1.4841 Stainless Steel

Nickel 686 belongs to the nickel alloys classification, while EN 1.4841 stainless steel belongs to the iron alloys. They have 44% 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 1.4841 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
32
Fatigue Strength, MPa 410
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
78
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
330
Maximum Temperature: Mechanical, °C 980
1150
Melting Completion (Liquidus), °C 1380
1380
Melting Onset (Solidus), °C 1340
1340
Specific Heat Capacity, J/kg-K 420
490
Thermal Conductivity, W/m-K 9.8
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 70
25
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 12
4.3
Embodied Energy, MJ/kg 170
62
Embodied Water, L/kg 300
190

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
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
23
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 2.6
4.0
Thermal Shock Resistance, points 21
15

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.2
Chromium (Cr), % 19 to 23
24 to 26
Iron (Fe), % 0 to 5.0
47.1 to 55.5
Manganese (Mn), % 0 to 0.75
0 to 2.0
Molybdenum (Mo), % 15 to 17
0
Nickel (Ni), % 49.5 to 63
19 to 22
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.080
1.5 to 2.5
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