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Grade 18 Titanium vs. Grade CX2MW Nickel

Grade 18 titanium belongs to the titanium alloys classification, while grade CX2MW nickel belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 18 titanium and the bottom bar is grade CX2MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 11 to 17
34
Fatigue Strength, MPa 330 to 480
260
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
84
Tensile Strength: Ultimate (UTS), MPa 690 to 980
620
Tensile Strength: Yield (Proof), MPa 540 to 810
350

Thermal Properties

Latent Heat of Fusion, J/g 410
330
Maximum Temperature: Mechanical, °C 330
980
Melting Completion (Liquidus), °C 1640
1550
Melting Onset (Solidus), °C 1590
1490
Specific Heat Capacity, J/kg-K 550
430
Thermal Conductivity, W/m-K 8.3
10
Thermal Expansion, µm/m-K 9.9
12

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.9
Embodied Carbon, kg CO2/kg material 41
12
Embodied Energy, MJ/kg 670
170
Embodied Water, L/kg 270
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1380 to 3110
290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 43 to 61
19
Strength to Weight: Bending, points 39 to 49
18
Thermal Diffusivity, mm2/s 3.4
2.7
Thermal Shock Resistance, points 47 to 67
17

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.080
0 to 0.020
Chromium (Cr), % 0
20 to 22.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
2.0 to 6.0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
12.5 to 14.5
Nickel (Ni), % 0
51.3 to 63
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 92.5 to 95.5
0
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 2.0 to 3.0
0 to 0.35
Residuals, % 0 to 0.4
0