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Nickel 686 vs. EN 2.4642 Nickel

Both nickel 686 and EN 2.4642 nickel are nickel alloys. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is nickel 686 and the bottom bar is EN 2.4642 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
34
Fatigue Strength, MPa 410
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 560
450
Tensile Strength: Ultimate (UTS), MPa 780
670
Tensile Strength: Yield (Proof), MPa 350
270

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Maximum Temperature: Mechanical, °C 980
1010
Melting Completion (Liquidus), °C 1380
1360
Melting Onset (Solidus), °C 1340
1320
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 9.8
12
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 70
50
Density, g/cm3 9.0
8.3
Embodied Carbon, kg CO2/kg material 12
8.2
Embodied Energy, MJ/kg 170
120
Embodied Water, L/kg 300
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
180
Resilience: Unit (Modulus of Resilience), kJ/m3 280
180
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
3.1
Thermal Shock Resistance, points 21
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0 to 0.010
0 to 0.050
Chromium (Cr), % 19 to 23
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 5.0
7.0 to 11
Manganese (Mn), % 0 to 0.75
0 to 0.5
Molybdenum (Mo), % 15 to 17
0
Nickel (Ni), % 49.5 to 63
55.9 to 66
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.080
0 to 0.5
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