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Nickel 690 vs. Grade 2 Titanium

Nickel 690 belongs to the nickel alloys classification, while grade 2 titanium belongs to the titanium alloys. There are 31 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 2 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
150
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 3.4 to 34
23
Fatigue Strength, MPa 180 to 300
250
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 79
38
Shear Strength, MPa 420 to 570
270
Tensile Strength: Ultimate (UTS), MPa 640 to 990
420
Tensile Strength: Yield (Proof), MPa 250 to 760
360

Thermal Properties

Latent Heat of Fusion, J/g 320
420
Maximum Temperature: Mechanical, °C 1010
320
Melting Completion (Liquidus), °C 1380
1660
Melting Onset (Solidus), °C 1340
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 14
22
Thermal Expansion, µm/m-K 14
9.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 50
37
Density, g/cm3 8.3
4.5
Embodied Carbon, kg CO2/kg material 8.2
31
Embodied Energy, MJ/kg 120
510
Embodied Water, L/kg 290
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
92
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
600
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 21 to 33
26
Strength to Weight: Bending, points 20 to 27
28
Thermal Diffusivity, mm2/s 3.5
8.9
Thermal Shock Resistance, points 16 to 25
32

Alloy Composition

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 0.3
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 0.25
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
98.9 to 100
Residuals, % 0
0 to 0.4