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Nickel 686 vs. EN 2.4650 Nickel

Both nickel 686 and EN 2.4650 nickel are nickel alloys. They have 77% of their average alloy composition in common.

For each property being compared, the top bar is nickel 686 and the bottom bar is EN 2.4650 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 51
34
Fatigue Strength, MPa 410
480
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
80
Shear Strength, MPa 560
730
Tensile Strength: Ultimate (UTS), MPa 780
1090
Tensile Strength: Yield (Proof), MPa 350
650

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Maximum Temperature: Mechanical, °C 980
1010
Melting Completion (Liquidus), °C 1380
1400
Melting Onset (Solidus), °C 1340
1350
Specific Heat Capacity, J/kg-K 420
450
Thermal Conductivity, W/m-K 9.8
12
Thermal Expansion, µm/m-K 12
11

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
80
Density, g/cm3 9.0
8.5
Embodied Carbon, kg CO2/kg material 12
10
Embodied Energy, MJ/kg 170
140
Embodied Water, L/kg 300
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
320
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1030
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 24
36
Strength to Weight: Bending, points 21
28
Thermal Diffusivity, mm2/s 2.6
3.1
Thermal Shock Resistance, points 21
33

Alloy Composition

Aluminum (Al), % 0
0.3 to 0.6
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.010
0.040 to 0.080
Chromium (Cr), % 19 to 23
19 to 21
Cobalt (Co), % 0
19 to 21
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0 to 5.0
0 to 0.7
Manganese (Mn), % 0 to 0.75
0 to 0.6
Molybdenum (Mo), % 15 to 17
5.6 to 6.1
Nickel (Ni), % 49.5 to 63
46.9 to 54.2
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.080
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.0070
Titanium (Ti), % 0.020 to 0.25
1.9 to 2.4
Tungsten (W), % 3.0 to 4.4
0