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Nickel 686 vs. Grade 15 Titanium

Nickel 686 belongs to the nickel alloys classification, while grade 15 titanium belongs to the titanium alloys. 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 grade 15 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 51
20
Fatigue Strength, MPa 410
290
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
41
Shear Strength, MPa 560
340
Tensile Strength: Ultimate (UTS), MPa 780
540
Tensile Strength: Yield (Proof), MPa 350
430

Thermal Properties

Latent Heat of Fusion, J/g 320
420
Maximum Temperature: Mechanical, °C 980
320
Melting Completion (Liquidus), °C 1380
1660
Melting Onset (Solidus), °C 1340
1610
Specific Heat Capacity, J/kg-K 420
540
Thermal Conductivity, W/m-K 9.8
21
Thermal Expansion, µm/m-K 12
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 70
37
Density, g/cm3 9.0
4.5
Embodied Carbon, kg CO2/kg material 12
32
Embodied Energy, MJ/kg 170
520
Embodied Water, L/kg 300
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
100
Resilience: Unit (Modulus of Resilience), kJ/m3 280
870
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
35
Strength to Weight: Axial, points 24
33
Strength to Weight: Bending, points 21
33
Thermal Diffusivity, mm2/s 2.6
8.4
Thermal Shock Resistance, points 21
41

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.080
Chromium (Cr), % 19 to 23
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 5.0
0 to 0.3
Manganese (Mn), % 0 to 0.75
0
Molybdenum (Mo), % 15 to 17
0
Nickel (Ni), % 49.5 to 63
0.4 to 0.6
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Ruthenium (Ru), % 0
0.040 to 0.060
Silicon (Si), % 0 to 0.080
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0.020 to 0.25
98.2 to 99.56
Tungsten (W), % 3.0 to 4.4
0
Residuals, % 0
0 to 0.4