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Nickel 686 vs. Nickel 625

Both nickel 686 and nickel 625 are nickel alloys. They have 89% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is nickel 625.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
33 to 34
Fatigue Strength, MPa 410
240 to 320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
79
Shear Strength, MPa 560
530 to 600
Tensile Strength: Ultimate (UTS), MPa 780
790 to 910
Tensile Strength: Yield (Proof), MPa 350
320 to 450

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Maximum Temperature: Mechanical, °C 980
980
Melting Completion (Liquidus), °C 1380
1350
Melting Onset (Solidus), °C 1340
1290
Specific Heat Capacity, J/kg-K 420
440
Thermal Conductivity, W/m-K 9.8
11
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 70
80
Density, g/cm3 9.0
8.6
Embodied Carbon, kg CO2/kg material 12
14
Embodied Energy, MJ/kg 170
190
Embodied Water, L/kg 300
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
220 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 280
260 to 490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 24
26 to 29
Strength to Weight: Bending, points 21
22 to 24
Thermal Diffusivity, mm2/s 2.6
2.9
Thermal Shock Resistance, points 21
22 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Carbon (C), % 0 to 0.010
0 to 0.1
Chromium (Cr), % 19 to 23
20 to 23
Cobalt (Co), % 0
0 to 1.0
Iron (Fe), % 0 to 5.0
0 to 5.0
Manganese (Mn), % 0 to 0.75
0 to 0.5
Molybdenum (Mo), % 15 to 17
8.0 to 10
Nickel (Ni), % 49.5 to 63
58 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0 to 0.040
0 to 0.015
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 to 0.4
Tungsten (W), % 3.0 to 4.4
0