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Nickel 690 vs. Grade 28 Titanium

Nickel 690 belongs to the nickel alloys classification, while grade 28 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is nickel 690 and the bottom bar is grade 28 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 3.4 to 34
11 to 17
Fatigue Strength, MPa 180 to 300
330 to 480
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 79
40
Shear Strength, MPa 420 to 570
420 to 590
Tensile Strength: Ultimate (UTS), MPa 640 to 990
690 to 980
Tensile Strength: Yield (Proof), MPa 250 to 760
540 to 810

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Maximum Temperature: Mechanical, °C 1010
330
Melting Completion (Liquidus), °C 1380
1640
Melting Onset (Solidus), °C 1340
1590
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 14
8.3
Thermal Expansion, µm/m-K 14
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 50
36
Density, g/cm3 8.3
4.5
Embodied Carbon, kg CO2/kg material 8.2
37
Embodied Energy, MJ/kg 120
600
Embodied Water, L/kg 290
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
1370 to 3100
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 21 to 33
43 to 61
Strength to Weight: Bending, points 20 to 27
39 to 49
Thermal Diffusivity, mm2/s 3.5
3.4
Thermal Shock Resistance, points 16 to 25
47 to 66

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 27 to 31
0
Copper (Cu), % 0 to 0.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 7.0 to 11
0 to 0.25
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 58 to 66
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
92.4 to 95.4
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4

Comparable Variants