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Nickel 686 vs. EN 1.4659 Stainless Steel

Nickel 686 belongs to the nickel alloys classification, while EN 1.4659 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 (4, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 51
49
Fatigue Strength, MPa 410
460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
81
Shear Strength, MPa 560
640
Tensile Strength: Ultimate (UTS), MPa 780
900
Tensile Strength: Yield (Proof), MPa 350
480

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1380
1480
Melting Onset (Solidus), °C 1340
1430
Specific Heat Capacity, J/kg-K 420
460
Thermal Conductivity, W/m-K 9.8
12
Thermal Expansion, µm/m-K 12
16

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
37
Density, g/cm3 9.0
8.2
Embodied Carbon, kg CO2/kg material 12
6.5
Embodied Energy, MJ/kg 170
89
Embodied Water, L/kg 300
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
370
Resilience: Unit (Modulus of Resilience), kJ/m3 280
550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
31
Strength to Weight: Bending, points 21
25
Thermal Diffusivity, mm2/s 2.6
3.2
Thermal Shock Resistance, points 21
19

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.020
Chromium (Cr), % 19 to 23
23 to 25
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 0 to 5.0
35.7 to 45.7
Manganese (Mn), % 0 to 0.75
2.0 to 4.0
Molybdenum (Mo), % 15 to 17
5.5 to 6.5
Nickel (Ni), % 49.5 to 63
21 to 23
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.080
0 to 0.7
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
1.5 to 2.5